Cancer / Recurrence free 2 years post Prostatectomy

Had my check up with the consultant October 2014 and PSA test which has come back with a less than 0.01 which is fabulous news. Consultant was kind when he suggested I had put on a few pounds. Really need to do something about the weight that I have put on. I can only put that down to feeling lethargic and not really wanting to do anything. Doesn't help that 2 years of ED plays on your mental state.