Joe Hayden tells us Jayson -- who is currently under evaluation at St. Vincent's Hospital -- "has no knowledge of a suicide attempt or being suicidal" and is at the medical facility for a "medical condition."
Hayden also said Jayson "has not been arrested."
Earlier today, sources told us a woman called 911 on Jayson at 4:28 AM, saying he was causing a disturbance -- and that alcohol or prescription drugs were involved.
Cops later confirmed empty prescription drug bottles were found at the scene -- and that they had to Taser Jayson, handcuff him and ship him over to St. Vincent's for psychological evaluation.
He said, she said...
UPDATE: Sources say Williams will be staying in the hospital overnight for observation.