I understand how you feel. My reaction to Reclast is delayed for a month after I get it and then I have side effects of very painful joints on and off during the year. I apparently have to take it as the result of having had one year of Prolia. My best advise is to be sure hand drink at least 48 ounces of water the day before the infusion and make sure the doctor orders the infusion to be given slowly for one hour and that they flush the tubing afterward. Good Luck !
Let me know how you are doing !