I know when I was going through a marriage break up, I probably should have had ADs, with hindsight. Glad I didn't now though. It was definitely exercise that stopped me tipping over the edge though. Last thing I wanted to do, but a lot of pentup frustration and unhappiness was taken out on that treadmill. I couldn't walk a couple of miles withut getting out of breath to start off with but it's something that can be build up so quickly. Within weeks I was running 10k in an hour, and coming out feeling so much better. It did become a bit of an addiction, and I used to feel bad if I missed some, but it really kept me sane. My local council gym had a creche, and of course it also gave me a much needed hour to myself. That's another thing us Mums feel guilty about needing. However, no matter how much you love your son, and how fantastic a Mum you are, you DO need time without him. Big hugs to you.
Lynda