Anyone have Sleep Apnea after WLS??

Hello Everyone, I just found out today that I have sleep apnea now. I don't think I had it before WLS, I was never tested. I am 44 weeks out from WLS. I had been having headaches the last few months and went to the doctor. He sent me for a sleep study. I went for the results today and I have it. Just wondering if this has happened to anyone else??????? If so please let me know. Thanks, Becky P.