I am having the exact same thing. I don't know if it's Lyme's or the doxy, but a week after taking the Doxy, all of my fingers swelled up in a matter of minutes and became very painful..I can't even open bottles, etc. Then my knees, wrists, shoulder, hip, swollen feet, stiff neck....I am at a loss but it's so painful, I can barely move at times....the dr. said it's Reactive Arthritis from an infection, but I just don't know.
doxycycline 100mg joints light headed sports reactive arthritis doxy swollen feet stiff neck exact same thing matter of minutes lyme arthritis fingers