Feel like a crap mom.

I haven't worked since the middle of May. I've been hanging out with my 2 year old son at home and really wanted to spend the summer with him because I had that opportunity. Well. I really am not enjoying it and it makes me feel like the worst mom ever. I love him more than anything but I don't like being home with him all the time. I miss working. So I'm torn right now thinking I'm this awful mom and should enjoy getting to stay home with him because I know other moms would LOVE to do this and how much I just want to go back to work. Any advice?