Have been on Fosomax for 2 years: Change to Prolia?

I am 74-havehad1fall-nofracture,concussion or internal bleeding. Have been on fosomaxfor 2 years weith noside effects/ I am on the mediterreandiet and have been for 9 years. After my DEXA scan last year, I was found to have osteopenia in my right and left femur, and one other was osteoporosis, but the fourth one,also osteoporosous was _4.1 in my left forearm. My endochronologist thinks I should switch to prlis-he sdays after 2 years on fosomax,itplateaus out. However I am extremely uncomfortable about going on prolia-did much research and feel it has too many side effects. I just decreasedprimidone a week ago tomorrow from 875mg. a day to 750; also take the generic of kepra--5 ml. twice a day. I exercise twice a week-45 minutes and do strenthening exercises and take yoga once a week;will start pilates December17