After about 5-6 days after my Reclast, with the help of rest and Tylenol or Advil, I was fine and had no more side effects of which I was aware. They do say that each time the side effects are less. It was also recommended to slow the infusion to 30 minutes instead of 15 (since it was my first time, and to take 1000 mgs of Tylenol. They gave me Benadryl beforehand to forestall any possible allergic reaction. Best of luck and hope your side effects have abated. .