I am really surprised to hear of your arm difficulty. I never had a bit of trouble following my simple mastectomy, and only had trouble with that arm after I fell and broke the head of the shoulder joint in three places. I now have an artificle shoulder replacement. The only time I seem to have any edema is when I have blood draws. They have to use this arm, because the left mastectomy is off limits. When I had the Valve replacement they also had to use this arm, but very little after event even though they had to enter an artery in my wrist. Much easier then the groin. Interesting you have a nerve disorder. After all these years, I have Trigeminal Neuralgia. That is how they found the MGus. Routine testing. I have pretty much quit driving. My son has moved in to my home, and he takes me to all my appointments. I have gotten very lazy. I can still drive and have a license (eye sight is quite good), but I think it is smart not to drive unless I really, really need to. I do take high blood pressure medication which has a diuretic. My ankle swells considerably since I had the cancer removed from my leg, but I also have the hip and knee surgery and you cannot have that much surgery all on one side without some disruption of the circulatory system. The diuretic keeps the swelling down considerably. Have they tried any diuretics for your edema? Your kind words and good thoughts will brighten my day, and I look forward to my next "New Part".
Gind5009