So I had my appointment today. GP said my arm feels fatigued/puffy because I over used it and therefore strained it. She also wasn’t concerned about my leg, saying it’s probably strained from not stretching before exercising. Definitely not neurological, though I spent so many weeks worrying about this that I find it a little hard to accept that I’m probably fine. I need to work on this. And I need to stop googling symptoms. Thank you all for the support.