Sorry refeeding syndrome is when I was under weight and malnurished and they increased my calories to a high level. My body held onto a lot of water which can have bad side effects on the heart and organs so has to be watched. I know having your legs elevated as much as possible helps and maybe ask the docs about support hose. Electrocuted and others have you discussed the swelling with your docs? Maybe they can offer more and some ways to relieve or a med to counteract.