Stomach Virus I Think

Ok someone please help me with this PLEASE don't just read and then go on with your life because as of right now i am ready to rip out the lap band and say to hell with it. I have been sick for a week now. not get me wrong i love my lap band but as soon as i need to throw up the pain is so bad that i just want to say to hell with it but i stick it out and i go on with life because that's all that we can do right? but please tell me that someone else feels this. It starts as a burning and then moves to like this god awful gas pain and i know that i need to throw up but nothing ever comes up sometimes a big icky burp but that is about it. As of right now i have lost 20lbs in one month because for the past four days i haven't eaten and when i have i feel this need to throw up like i must have a stomach bug or something but do stomach bugs really last this long?????? FOUR WHOLE DAYS! ok no biggie because im not really hungry any ways how ever......I got to thinking which might be wrong of me but is being pregnant with lap band going to be like this???? I need to know because it scares the crap out of me to think that it would feel that bad and i wont be able to throw up. Can someone just tell me is there anything i can do i have taken the promethazine 25mg but i have to take two and it doesn't always help at all. is there anything that i can do to help this because it really sucks. And i have never been pregnant so i know if i got pregnant it would be like having the stomach virus??? and why is this stomach virus so bad??? and it usually happens about seven at night. I am giving up on eating until i know that i wont get sick that's how bad i am feeling.