First gym session after surgery

So, I spent part of the weekend slinging a sledgehammer and carrying broken concrete. I managed to steal a few minutes at the gym. I was so weak!!!! I gave up on the gravitron as everytime i did a pull up or a dip, it felt like my skin was going to rip. I wonder if they sewed my skin onto my ribs? lol I did do some dumb bell presses... better luck later, I hope....