Yesterday (about 36 hours ago) I took my first Fosamaz, for some ...

Yesterday (about 36 hours ago) I took my first Fosamaz, for some minor bone thinning. A few hours ago, I felt like I had pulled something across my back and it has gotten worse. The pain seems to have spread especially to my knees but also my elbows and hands. I have rheumatoid arthritis and take methotrexate, plaquenil, and naproxen. Normally with my arthritis, I might ache SOMEWHERE (for the most part pain is controlled), but now I'm aching EVERYWHERE, it hurts to move. I just thought about looking up possible side effects online and found this site. This feels almost like the flu, but I don't have a headache--yet, anyway. I just took a muscle relaxer to help--I hope I didn't make it worse.