One of my first symptoms was that my muscles slowly stopped recovering after my intense work outs. I noticed that they started losing their tone and I became unable to complete as many reps as I had been doing for years. Along with this was a good amount of numbness and tingling. Then came the dysautonomia.
I became unable to exercise due to horrific pain and muscle spasms 2 years ago and have full body sfpn now with some sort of connective tissue disease. I try to exercise and because of the pain and autonomic problems, it is difficult. Then my whole body seems to be sent into a flare with muscle, ligament, and nerve pain. It's like exercising causes my body to actually become injured. The only thing I can do that helps and doesn't harm me is extremely gentle stretching. It is very upsetting and frustrating not to be able to even go for a walk with out terrible consequences.