I'm sure this must have been discussed before, but during the last couple of months my symptoms have become much worse. Particularly upsetting is this: I will feel reasonably okay, go out to run an errand, and suddenly (and I do mean suddenly) break out in a sweat, become very weak, and feel as though I'm going to faint. My doc says my heart is fine. I had more or less recovered from my trip, but came down with a nasty bladder infection. Ever since taking the Cipro and some other fancy antibiotic, I've been just plain miserable with this. Have any of you found antibiotics make your me/cfs symptoms worse?