Bret Michaels was forced to cancel his Friday night show in Wilkes-Barre, Pennsylvania, after becoming "violently ill" in the middle of a show on Thursday.

Michaels, who has type 1 diabetes, was performing at the Palace Theater in Manchester, New Hampshire, on Thursday night when he was "dragged" off the stage. Details of his condition were slim last night -- a statement by by guitarist Pete Evick merely cited "extremely low blood sugar" -- but doctors have determined that the singer was suffering from a combination of low blood sugar, insulin shock and dehydration as a result of the flu.

Evick took to Michaels' Facebook page to give an update on Friday (May 30). He said Michaels is still hoping to perform in Albany on Saturday.

"As previously announced, Entertainer Bret Michaels was physically forced to leave the stage last night at the Palace Theater in Manchester, New Hampshire due to complications involving insulin shock & severe low blood sugar, along with other conditions which doctors later determined included exhaustion/dehydration/fever and the noro flu virus. Michaels attempted to return to the stage to finish the show however it was clear to the band, crew, and audience that he would not be able to continue, as he walked of the stage and became violently Ill.

Paramedics present at the show immediately responded and 911 was notified. Unable to keep substance in his system complications with his insulin levels and inability to balance his blood sugar levels arose. Michaels was rushed by ambulance to CMC (Catholic Medical Center), and monitored through the evening as doctors tried to bring his blood sugar back to healthy levels.

Under strict medical direction Michaels will not be able to perform this evening in Wilkes-Barre, Pennsylvania as doctors have ordered him to let the flu virus run it's course and let his blood sugar rebalance and remain consistent. While hoping to perform tomorrow in Albany, type 1 diabetes complicates health issues such as the nora flu virus and must be monitored and taken very seriously."