Bobby Rydell told us Saturday afternoon that he's feeling much better after missing a show Friday night at the Keswick Theatre. "I just didn't feel right," said the singer who was rushed from his Penn Valley home to Lankenau Hospital in Wynnewood Friday evening. "I took a shower to get ready to leave for the show and I didn't feel well. I'm a diabetic. I was just sitting there in a towel and I was clammy. I didn't eat much yesterday." Rydell's wife Linda called 911 and "She kept forcing clementines down my throat in case my levels were too low," he told us. We spoke to Rydell when he was at the airport with Frankie Avalon and Fabian who both performed at the Keswick, heading off to a gig tonight in Cleveland. The guys are off to Sarasota, Fla tomorrow, and Rydell next plays the Hilton in Atlantic City on March 27.