I just brought home my newest addition Ava, a 5 wk old kitten, I just noticed that she keeps going over to the litter box and meowing, then digging around and squatting, (I am not sure if she is urinating, I don't think so) then meowing and squatting again. Is this normal, my other 2 cats never did this, or could she have some kind of infection? Any advice anyone can give me would be greatly appreciated. Thanks.