Sorry to hear this. Not a dr- but lots of "experiences and hindsight" - have you been on any antibiotics recently or even as long as a year ago? Check the BlackBox info you won't see on the meds themselves. Dig in. For Sure, CIPRO can cause not only ruptured tendons, but neuropathy and much more. It's a fluoroquinolone. Cephalosporins are nasty, too. I had to go through a drug challenge to prove what I said was true- that I had very adverse reactions. I am told it's not a true allergy to antibiotics if asphyxiation, rash, or streaks are not involved. In my case, they are, but I also got oral tingling that exhasperated my already known eosphageal Lichen Plans (which can also be drug induced!) Oral LP, derma LP, Lichen Sclerosus (horrible!) and swelling in limbs to the point I could not bend my thumb and index. Hope not the case. Always check BLACK BOX info which is always a work in progress. NIH, drugs.com, etc have the info. Double, triple check because info may be edited.