Suge Knight: I'm Not Just Bellyachin' ... Get Me a Doctor!

[CORREA]

Suge Knight is out of his jail cell ... and in a hospital bed ... where he's getting treatment for severe abdominal pain.

Law enforcement sources tell us the murder suspect was complaining about stomach issues, and he was rushed to L.A. County Hospital by ambulance on Monday evening. He's still there ... under close guard, of course.

Suge's had a bunch of health issues over the last year while he's awaiting trial for driving over a man and killing him -- frequently getting rushed out of court hearings and jail.

Maybe those Oscars skits on Sunday night didn't sit well with him.

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