I am coming up to 4 months and am starting to push on, you have to test yourself, especially going back to do things which provokes symptoms within reason. I cannot swim or go to the gym, but I can do a big shop in a supermarket, weed the garden for an hour, or go for a long walk. I have been unable up until now to do these things, but I can do them because I tried. I think that it needs to be a gradual process though, because one wouldn't want to provoke the symptoms I had in the first 3 months especially headaches, chronic fatigue and severe light/noise sensitivity.