My 3 y/o calico has been very lethargic over the past week which is very concerning because she is normally very full of energy, eager to play, and loves being pet. She recently had a spate of vomiting (once a week for a month) so we brought her in for an emergency vet visit. Her exam was normal and she had a CBC/SuperChem panel done that came back normal as well. She has been eating well still, drinking water, and using the litter box as normal, but she otherwise looks miserable and has no energy. Does anyone have any experience with this? We suspected potentially GI issues but not sure. Any help would be appreciated.