Re exercising, I used to find I either did too much and got exhausted or forgot to do any. Now, I do a steady amount by pacing myself through the day. My rule is to do 10-20 of something every time before I sit down. Eg. I move to the dining table, I exercise and then sit down, move to the couch, exercise and then sit down. The only exception is when going to the loo for obvious reasons although I exercise after. So far, so good...this system seems to work in terms of enabling better flexibility and walking without exhaustion.