I thought my Beta was dying too... They are really lazy, and they don't swim much. They also don't eat very much. Try getting some stuff from the pet store that is like a relaxer for the water. She might be stressed. It also helps put like a slime on her that she may lose when she gets stressed. Also try totally changing her water. If she doesn't already, try getting a little plastic plant thing, it gives them something to sleep in/on and swim around. hope it helps love:) and hope the fishy starts feeling better