1st consultation

My physiotherapist told me in hospital there is nothing you can do in exercise to damage anything so just do my best with normal usage. Someone else said don't lift anything heavier than 5kg with it. I have all my underarm nodes removed and they were right, every time I start lifting anything more than 5kg I end up with pain and swelling in the arm. I've sorta gotten used to it and I put on a pressure sleeve is the arm doesn't seem to be righting itself. You just sort of learn to live with life's little challenges. My problem atm is I think chemo or tamoxifen has done something to my brain. I cannot now learn and remember a phone number to save myself yet older numbers I haven't forgotten.