My 2 and a half old flame dwarf gourami has been acting extra lethargic and I can't figure out why. She has been spending a lot of time just lying on her side and barely showed interest in eating. I checked all the water parameters and everything is normal so the water can't be the issue. Part of me also suspected constipation since she has had that problem before, so I tried to feed her a pea, but again she showed no interest. I'm starting to fear she has dwarf gourami disease, I have no idea. I'm very worried for her, this is just so sudden and I don't know what I did wrong.