As long as you listen to your body, exercise is OK. I go to the gym 3 times a week and walk from work every night at a really brisk pace for about 25 mins. I seem to cope OK with that. Just take things easy to start with and build up slowly. I love my gym workout on all the weight machines, only light though, don't want to look like Arnie or anything just need to tone up. It is working though and I really enjoy going. Good luck.