HELP! Inop for a week but want to work out...

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Hey everyone! Need some advice on what to do while I'm recouperating from surgery. I got my appendix taken out as well as an ovarian cyst they found along the way. My abdominal area is INCREDIBLY tender and full of pain.

I was doing SOOOO good going to the gym and working out. The Dr. says nothing crazy but all I know is crazy! I had to cancel my Zumba classes and my students aren't happy. Can anyone reccommend any exercises I can do to keep me going? AND anything that I can snack on while I'm not working out like I'm used to...I just don't want to lose all the progress I've been seeing.