Ronnie from "Jersey Shore" just survived something more painful than a summer with Snooki -- 10 agonizing days in the hospital with kidney stones ... TMZ has learned.

Sources in Ronnie Magro's camp tell us the 27-year-old got out of a Florida hospital Wednesday after undergoing two surgeries to treat kidney stones ... and more.

Ronnie initially went in for the stones, but we're told docs discovered he was born with a hereditary disorder that's also fouling up his kidney function.

Doctors still haven't cleared Ronnie to fly -- so he's stuck in FL for the time being.

Btw, we're told Sammi "Sweetheart" was with Ronnie for his entire 10-day hospital stay ... so they probably broke up at least twice.

It's T-Shiiiiiiiiiirt time -- or at least it will be soon -- because Mike "The Situation" Sorrentino is back in front of reality TV cameras.

Sources close to the situation tell TMZ ... the "Jersey Shore" star -- who has alluded to getting his own reality show -- has already started shooting.  We're told the show centers around Sitch AND other members of the Sorrentino clan ... living it up in the NJ burbs.

It's unclear if a network is attached yet ... BUT we're told the house Sitch is renting during production is right next door to the place where Snooki and JWoww taped their spin-off.

In case you're wondering what's in store ... we got footage of the GTL guru taping a few scenes ... which involve him getting in and out of his Lamborghini.

Genius.

The latest version of Snooki was unveiled at the MTV Movie Awards in L.A. on Sunday.

No assembly required.

Pregnancy is HELL, so says Snooki ... who tells TMZ the process of childbearing is much more disgusting than everyone makes it out to be.

The slimmed-down "Jersey Shore" star was hangin' at LAX -- sans her baby daddy Jionni and her baby Lorenzo -- when we asked if she planned to bang out another kid anytime soon.

"Yeah, I want one right now, but it's just not the right time," Snooki said ... adding, "We're gonna try to plan this one."

But when we asked Snooki to cut the crap and tell us the truth about her 9 months with child, the MTV star didn't hold back.

Angelina Pivarnick got Staten Island dumped by the WWE -- TMZ has learned the former "Jersey Shore" star tried several times to score free tickets to WrestleMania 29 ... but got no reply at all.

According to our sources, Pivarnick has been contacting every WWE employee she can find in hopes of scoring tickets to this weekend's main event -- which happens to be in NJ.

We're told Angelina was so desperate, she even played the TNA card -- as no one remembers she briefly wrestled in that league -- but again ... no luck.

Sources close to the WWE tell us they were "unable to accommodate her request due to overwhelming demand for tickets."

To add to the insult, the WWE announced this week ... Snooki will be at WrestleMania and will be involved in the event.

JWoww recently stepped out in Atlantic City in a very revealing dress, and proved her boob job is just like A.C. -- totally awesome!  Or terrible ... depends on your angle.

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Jwoww proved she has no support system in place .. and went braless to show off her enhanced sideboob at Dusk nightclub at Caesars Hotel in Atlantic City this weekend.

Adding to the "Jersey Shore" star's understated glamour were exposed bad tats, a surgical scar and black fabric loosely strung on to resemble some sort of dress shorts thing.

It's one of her breast looks ever.

Deena Cortese from "Jersey Shore" can settle down ... the doppelganger whose boobs whipped up a Mardi Gras crowd says she -- and her tatas -- weren't trying to impersonate Deena. Or her yabos.

The look-alike flasher in question, Ashley Austin, tells TMZ she meant no ill will toward the 'JS' star ... claiming, "I personally really like Deena, and had no intentions of giving her a bad rap!"

TMZ broke the story ... Ashley flashed a New Orleans crowd and several cameras -- pissing off the real Deena, who fears the video will ruin her chances of getting on "Dancing with the Stars."

By the way, Ashley claims she "had no idea" she was being recorded, which is funny ... since she's looking DIRECTLY at the camera.

Then again ... lots of people forget things during Mardi Gras.

Deena from "Jersey Shore" says she's NOT a Mardi Gras booby flasher -- and claims she's getting a bad rap thanks to a sluttier doppelganger who looks just like her.

TMZ obtained video of a girl -- who looks EXACTLY like Deena -- partying her face off, lifting up her shirt and flashing her boobs down in New Orleans this week ... and people who witnessed the event first hand were convinced they were observing authentic MTV tatas.

But the REAL Deena tells TMZ it's not what it seems ... explaining, "I'm in Jersey right now ... plus if I were down in Mardi Gras I would NOT be showing off my boobs or any of my goods."

She continues, "I've been trying to work on changing my image especially since I want to be casted on 'Dancing with the Stars.' I get imitation is a form of flattery but this is definitely not the imitation I can ever hope for."

Fine. No beads for you.

They're both reality shows on MTV that feature a subculture of America doing crazy things on camera and bringing notoriety to their region ... but the stars of the new show "Buckwild" say they're nothing like their "Jersey Shore" counterparts. 

Our photog caught up with two of the show's stars, Shain Gandee and Shae Bradley, yesterday in NYC ... fresh off the premiere of their show, which is set in the backwoods of West Virgina.

When our photog asked how "Buckwild" compares to the now-complete "Jersey Shore" ... Shae was quick to kill any comparison: "We don't [compare]. They're both reality shows. We're both just living our lives, but they're not alike at all."

Seeing as the majority of the cast of "JS" made millions off their sudden fame ... perhaps Shae should re-consider.

With "Jersey Shore" officially in the history books ... Vinny Guadagnino says he's looking to transition into a career with even more sex, booze and drama ... POLITICS!!

Vinny was leaving Bootsy Bellows nightclub in West Hollywood the other night ... when he told us he's still planning on going to law school -- even though he doesn't want to practice law.

"I want to get into politics," Vinny says ... "So I was gonna go to law school to get involved in politics."

He added, "I know this sounds weird stumbling coming out of a club ... but I actually have a brain."

Fun Fact: Vinny says he got a 3.9 GPA in high school

As for his political aspirations ... VG seems to have all the prerequisites: Scandalous past? Check. Shady friends? Check. Thirst for power (and alcohol) ? Check and CHECK!