Your body will give you sound feed back and it will certainly let you know if you have done too much. I remember the first time I was feeling pretty good and decided to go for a 5 mi run. I came back w the most paralyzing headache, obviously too much.

This is a stretch (literally) but I have started doing yogaat a yoga studio, non jarring and it is so good for my body. I highly recommend it. I am in really great shape. When I do run, I don't wear a watch and try to do it for the pleasure of being out in the fresh air.

Aug 12 I will be 2 years post TBI accident I still have tinnitus, at which point I have to shut down. I put something over my eyes which seems to help in addition to the dark room w no TV or other sound.