Physical pain

I still have around 20 pounds of baby weight to lose and I am really committed, that is why I try to go to the gym 3 times/week and I am eating really well these days. Today was one of the gym days, and everything hurts!! Psychologically I feel great after I go as if I am really doing everything I can do, but my poor old body seems to think differently. Still I am not giving up, hopefully by the summer I am close to my target and I will feel myself again. I know I can do it!!!