hi everyone. My 8 month old kitten is at the same weight since 2 months ago and seems to be growing up very slowly. It has a healthy appetite and is super hyperactive. It's also very skinny. It doesn't seem to gave any health problems apart from loose stools that the vet described as food sensitivities which I'm currently investigating further. I'm feeding about 200 grams a day of a high quality meat-only complete kitten caned food and I'm also supplying vitamin supplements. It's currently weighing 9 pounds and hasn't gain a gram for two months now. Should i be worried? Can a kitten have hyper thyroid issues?