If he starts looking like he is "overfed" (not you fault) then no it is not normal. If anything, leave him for a day and if it either: gets worse, or does not subside, a little epsom salt is harmless and'll help clear him out. 1 teaspoon per gallon. I've used it on SBD victims, constipated ones, etc.
Oh no he doesn't have swim bladder disorder I mean you can actually see his bladder protruding a little... He is swimming fine I think. It was just weird cause it looks like a lump but my roommates fish has it too I guess its just their bladder but why is it so noticeable
For some bettas it is more visible. I had gotten....who was it.... Conan because he was in a gross tank at first, a couple weeks later rotting away in a bowl. How he laid it looked like a tumor so just in case....I got him. x.x found out it was just a swim bladder.
Like humans, bettas are different sizes - inside and out. Some are thinner at the base of their tail, which makes it so much more visible for the swim bladder.
So update On Benzema. I added him to his brand new tank and he is still really sluggish and mopey. He occasionally swims and when he does he seems happy and alert, but most of the day he hides in his hut and lays there looking sad :(. I wonder if that is just his personality. there isn't much I can do for him I have done most of the things I could. It maybe like OFL said he just needs time to adjust I hope so. I see nothing visibly wrong with him