Has heavy arm been a problem?

In October 2022 I had an ischemic stroke. I have been pretty lucky in that I've been able to pretty much live my life although not the same as before the stroke. The stroke affected my left side, primarily my left arm and hand. Since the stroke my arm has felt heavy. Like I've got a 20 LB weight strapped on it. It keeps getting worse it seems instead of better. My question is has anyone else experienced this symptom and if so did it get better how long did it last or is it still with you. If it did improve what were you able to do to improve it? I do exercises daily with my arm and hand and I have improved slightly the use of my hand and arm but it's still very heavy. The heaviness doesn't bother my leg as much although it gets a little heavier when I get tired. I have pretty good balance and am able to walk without a cane or walker but not very fast or long. I just turned 83 and I don't know if age much to do with my recovery time but I suspect it does. I would add that I was very active before my stroke.