Stomach pain??

Ok, I have been banded for 11 months and have been feeling really yucky lately. I have a constant dull ache and occasional stronger pain. Wouldn't really call it a sharp pain. It is an all over pain. My appetite has been non existant. Before I could eat pretty normal portions. Now my band feels really tight. I am eating about 1/2 of what I had been. I am uncomfortable sitting with my tighter jeans on. I was going to call the Dr. today but I waited too long and the office was closed, so I will have to wait another day. This has been going on for about 5 days. Not sure if it is a flu bug or something with the band. This happen to anyone else? I'm not vomiting, but have some diarrhea (sorry!).