I have been on ultracet for about 8 weeks now. I was prescribed 2...

I have been on ultracet for about 8 weeks now. I was prescribed 2 every 6 hours. I have had terrific migraine headaches since the age of 24 and two years ago they subsided. Now when I wake in the a.m. after being on the ultracet the terrific headaches and pain in my neck & shoulders is unbelievable. I have gained quite a bit of weight and wondered if that was one of the side effects also, although no one seemed to mention it in any of your articles.It does help the pain in the daytime, but I am not too sure I want to continue it.