She could have been constipated, I will start feeding her less.
As for the fins, don't worry about it, she got into a fight with a betta male, apparently they found a loophole in the previous divided tank setup. I set up my tank again and they are great. Her fins already healed up nicely, his, however took more damage but he is recovering nicely too. He resembles a crown-tail, even though he is a veil-tail now with his fins shredded.
What I wanted to say is that my fish eats, eats, eats. I feed her, she eats it all, then goes to the bottom to nip on the remains...
The picture above was taken a moment ago, as you can see, she looks great, but she still goes down and nips on the remains from time to time.
P.S. I know about the right info that I should provide but this has nothing to do with the setup.