I have a Pregnant Swordtail who seems to be suffering. When I purchased her a few months ago she was already pregnant. She has had at least two batches and is currently pregnant. Last night she seemed to be hiding in the plants and I noticed two new babies. This morning I could not find her. Tonight I saw her and she is flipping around on the bottom of the tank. She looks like she is still very pregnant. I put some Stress Coat in the tank. I don't know what to do! Any advice would be appreciated. Thanks!