1025-lil-wayne-gettyLil Wayne made an emergency landing in Texas after suffering seizure-like symptoms on a private jet ... TMZ has learned.

A source close to Weezy -- real name Dwayne Michael Carter, Jr. -- tells us, right after the plane touched down ... the rapper was transported to a local hospital to get treatment on Thursday evening.

It's unclear how long Wayne was in the hospital, or if medical professionals made an exact diagnosis -- but we're told he's "doing better."