I took prolia 4 months ago. after 2m i felt dizziness, excess gas in stomach, indigestion, mumbness in arms, loss of appetit and nausea, is it normal?

Not normal: Hi. No, those symptoms certainly aren't normal, but they may have nothing to do with the Prolia. Have the symptoms persisted for the last 2 months (since they began)? If symptoms resolve, a test of the hypothesis that Prolia is causally related is to see if they recur with the next dose. If the symptoms were too bad to risk another Prolia dose, there are other good osteoporosis drugs available.