Dropsy is not a disease in and of itself but rather a symptom for other things like organ failure. And no, she doesn't have dropsy
she's just very eggy since she's probably been around many boy's before going to your home.
Pea's do not help much in digestion, yes they have some fiber but it's not as good as using Daphnia either freeze-dried, frozen or live. Also Epsom Salt will help with bloat since that is also a laxative. However if she's just eggy which it does look like, then she doesn't need it. She'll most likely be like that for a while, try to fast her and she should reabsorb her eggs. During feeding time just cup her so she doesn't get at the food
Fast her for around 3-4 day's and that should help a little.