I have 3 male cats - Angel 4 yrs., Mac & Mickey (bros.) 3 yrs. Yesterday I brought Angel to the vet for vomit., diar., & straining. Vet said he was blocked & had to give him an emema. Brought him home. As of today he still does not want anything to do with me. Doesn't eat, drink, or move. Mac started hissing & growling at Mickey (whom he adores) & hasn't eaten anything all day. Mickey seems o.k. but hasn't been eating either. They've been keeping apart from one another & I haven't noticed any liter going. Does anyone know what might be going on with my boys?