In the past I had taken two separate three day courses for diverticulits, it worked right off, no problems. Last time I had diverticulitis, my doctor prescribed 10 day course of combo levaquin and flagl. After 7 days, I started to get hip joint pain, foot joint pain, and mild numbness in fingers on both hands and toes on one. I called doctor, and stopped the levaquin, and fortunately, the divertiltis was gone. However, the joint pain lessened after stopping but is taking weeks to fully go away.
I have found that silica (usually found in horsetail or oceanic) is helpful against the joint pain. (I had also tried selenium, msm, but were of no help for this joint pain.) Most of the joint pain is gone after several doses of silica, but the numbness, though lessened, lingers on a bit.
i don't think I'll take levaquin again for diverticulitis unless I'm dying. I've found that garlic tablets (I like solary's) very helpful, as is vitamin-c, for fighting back my intenstial bugs, and if I use garlic & vit-c for 5 or more days, it seems to cure the problem. Also I've heard that bacteria do not build up immunity to garlic, that it is a broad-spectrum antiboitic and antiviral, and so even if I stop taking it too soon and the bug comes right back, I can just get back on the garlic for a longer time, no worries about mutant bacteria.