The thing is, about a week ago we had to rush her to the vet because she licked her flea ointment and was having a bad reaction. The vet quickly sorted her out and then used the stethoscope to check her heartbeat and lungs and said everything is fine. She also said her stools feel normal and her temperature was normal, and didn't feel anything abnormal when feeling her abdomen. The only concern is that shes very underweight, but that was due to her not eating because her teeth were infected a few months ago so she could barely eat. But after having them extracted she was fine, she still isn't really gaining weight though. Around the time of the tooth extraction they did numerous blood tests on her that came back negative.
So, if she does have heart failure or fluid buildup, could it have just randomly developed overnight?? Is that even possible?? My sister claims she looks fine and that she always breathes like that, but I'm not sure. I feel I would have noticed it before. Her sides also seem to be slightly twitching occasionally, like theres something rippling under the surface. I just keep having these horrible thoughts that she'll get worse within a week or something and it turns out i was right to be paranoid
