Nick Gordon -- I'm Spilling Bobbi Kristina Secrets ... to Dr. Phil

Nick Gordon will finally tell his version of events that led to Bobbi Kristina face down in a bathtub near death, but he won't be telling cops ... he'll be yakking to Dr. Phil.

We're told Phil will meet Nick in the next few days and they will set a time for the formal sit-down. We're told the good doctor will ask about his battles with Bobby Brown and family ... battles that have kept him from Bobbi Kristina's hospital bed.

Here's the tricky part. Nick is the target of a criminal investigation that was launched when authorities noticed that Bobbi Kristina had visible injuries. As the saying goes ... whatever Nick says can be held against him, and it would be weird, to say the least, if Nick pled the 5th on Phil's show.

And finally, warning to Dr. Phil ... Nick has proven flaky in the past, so cross your fingers and hope he shows.