Probably not out of the woods

I am in Roatán He beautiful beach weather and diving with my soon to be ex plant manager. we didd a beautiful dive yesterday called Dixie. We saw a nice slow moving beautiful sea turtle. csfthe dive lasted for 4 minutes can I still had 500 pounds of air left when we finished. I am getting better at my rate of air consumption or breathing efficiency. when I was getting ready last night to go out for the evening I noticed that I had a sore spot underneath my armpit. it is red and raised. now I'm worried that my rrrrrrlymph nodes are swn and that it could be something bad