Thanks! Everyone else in my fam/friends think I'm insane for doing even this much. Luckily, I don't really care, and I know I'm doing the right thing. Even for a $2 fish as has been pointed out to me about 50 times, lol.
Yeah, it's really hard to get a good pic, especially since I can't find the charger cord for my camera. All pics were taken with my phone. I'll see what I can do about feeling the fish tonight. I think I have some exam gloves in a first aid kit at home still.
The bump in the tail (pretty much at the base where it meets his body) appears to have been open before I got him. Most of its surface is whitish gray, so it's hard to tell if it's really open or just dead skin on the surface.
As for the belly bump, it looks like it's maybe open a little bit but mostly closed. The surface appears to be getting more pale and grayish, though not as white/gray as the tail. It appears to be superficial, just underneath the skin, and goes partway up the body and partway down into the fin. When I first got him, it looked more closed and a little smaller, more like a blister than a hard bump. Within a couple days, it had gotten the slightly lighter color and looks less fluid filled and more hard than it did. I'll check tonight to see if it actually is hard or just looks that way.
Thanks for the help on this. It was getting a little frustrating to have no ideas on what those could be or a direction in which to look.