Diverticulitis Flare-up (maybe?) Use Antibiotic or No?

Hello,

Have you ever not been sure if you were having a flare-up?

I've had a diverticulitis flareup a few months ago that was successfully treated out-patient with an antibiotic (Flagyll). I think I might be having another flareup right now, but I'm not sure. A couple days ago I decided to go on a clear liquid diet just in case, see if it got better... That was probably a horrible idea because now I just feel really crappy and don't know if it's because of lack of food or a flare up.

I don't want to go on antibiotic again unless I can help it.

I don't have very acute symptoms. I'm experiencing some gas and discomfort but don't have a fever, though I feel very tired (again, lack of food or attack?) and I'm worrying myself over which is the worst choice... to needlessly use an antibiotic and contribute to resistance down the road or let this go for a few more days. Any suggestions or advice would be welcome.