so i recently broke both bones in my right forearm (i broke it in the same exact spot on both bones 2 years ago also) well after i got my cast off i was doing my rehab for my arm with my dad, and my elbow couldnt bend back all the way. we tried to force it like your supposed too( not all at once, but gradually) and it got a little better, but now it completely stops going farther back, and if we try to force it anymore, my arm shakes and has spasms and gives me an incredible pain. and its not going all the way back, like it only goes halfway back, unlike my other arm. what may have caused this?