Hey there :) So I'm only a few months into treatment and I seem to have come across some weird muscle symptoms. My most recent one is crazy muscle fatigue. My muscles get tired super fast, I have to take a break and catch my breath after walking up my stairs and my arms get tired just from putting my hair up in a ponytail. It's been going on for about two days. Can anyone relate to this??? Geez I'm only 26 and I feel 90 :(. On a good note, my bladder has been doing pretty well.