1. I have no clue on the exercise question. I was assume when doing them back to back you add the time and count that as one workout session.
what is the difference in points when doing them separate or together when doing morning and afternoon?
on question three I have heard it said many times on here you may not roll your daily points over. You use them or lose them. Some one more experienced will be able to give a more detailed reason why. I know if I started roll them over I would abuse them eating very little one day so I could pig out the next that is why I don't roll them over, but I know there is a more scientific reason.