I Am A Female Age 76 And Have Osteopenia And

I am a female age 76 and have osteopenia and had an infusion of Reclast about 3 weeks ago. I am now experiencing back pain and aching in my shoulder etc., I was apprehensive about getting this but was advised by the doctor at are new specialty center and after lab work decided to have the infusion. Are you aware of these side effects and how long do they last.