Hi Janina
Don't be sorry about having a whinge....that's what this site is for!! Who else is going to understand what's happening to you but us women who have been through what you have......now I remember what you are describing it's as if you have a tight cord inside your arm mine went from my armpit to just before my elbow.....now my physio gave me exercises to do and on my visit with her she would massage my arm yes it was painful but now I have really good movement in my arm.....I was really concerned about my left arm as I had previously had an AFE which affected the left side of my body ( but that's a whole other story lol)
Now do you do exercise? Let me know if you want me to describe the ones I do.....you never know they may help :)
Hope you can keep your spirits up......
Xoxo Sharl