J.M.
I have a seven month old also. I was just at the doctors for the same reasons. She said I have postpartum depression, she put me on zoloft and I have tried to excersise at home everyday. It was hard at first because I had no energy and no motivation.After a couple weeks when the zoloft kicked in I felt so much better. You should talk to you doctor there are a lot of options. Good luck and I promise things will get better.