@smiles349 since your symptoms are so soon after the infusion, do you think it is the "acute phase reaction" that many of us have with the first infusion? This is very well-known. Did your doctor warn you? You may be fine.

I had a pretty high fever for 8 days and two weeks of fluishness and pain but then I was fine. Second time, no problem. Since I was warned, I was not concerned.

Reclast is pretty good at building bone density but is an anti-resorptive so it does so by reducing turnover, not by building bone, according to my doctor. It has been around a pretty long time compares to some of the other drugs.

I have kidney disease and have a blood test (eGFR) after an infusion. That's a good idea!