DMX -- Busted by Bad Shellfish, Rushes to Hospital

DMX had the plane ride from Hell last night -- throwing up all the way from Miami to Charlotte, and then rushing straight to the hospital after landing.

According to DMX, he had some "bad shrimp" at his baby mama's house in Miami before he got on a plane -- commercial -- and then spent most of the flight tossing his cookies in the lavatory.

X tells us ... as soon as he touched down he went to Gastonia Memorial Hospital outside of Charlotte ... by limousine. Puking, but still balling!!

X spent about four hours in the emergency room getting treated for food poisoning, and then headed home.