She had gained a bit of weight, now she's lost about 10 grams and seems to be gaining slowly again (I'm not sure how accurate my scale is either so it's hard to say how much she's lost or gained). I recently bought her oxbow hay (I finished what she came with--pet store stuff) and she's been eating a lot more hay since she likes it better and thus, less pellets. This may be a reason she's lost weight but you never know. Other than that, no symptoms of malo.
I just burritoed her and felt her jaw more thoroughly. The bumps are definitely symmetrical and it seems like one bump on each side, far back where her last molars are or further (if that makes sense). I tried to look up pictures of chin jaws before to see if they had any bumps but couldn't get a clear view.
Thanks for the quick reply, Stackie. I feel a bit better.