Supervise their visits together til they get use to each other. Pet them simutaneously so the new cat is made welcome and reassure the other cat that it isn't losing you but gaining a friend. Once they get used to each others smell and activity they can become friends if they both feel equally secure with you. About the voice check his glands. Hope the kitten doesn't a kitten illness that it brought home. You might want to see a vet.
your kitten may have a gas problem, or may have overeaten, many kittens have visible bellies, but if it seems to be causing it distress, take it to the vet.
I am not sure . it could be very serious though! Contact your vet straight away.
If this is a serious question you should go see a doctor.
Kittens are very playful animals. If a kitten shakes when it is eating it could just be excited and enjoying the meal. If the kitten seems to be distressed, the food could be hard to chew, it could be choking the kitten, the kitten may not like the flavor, or the kitten may be having an allergic reaction to the food.
There is no evidence of that. He usually seems cheerful and optimistic.
"Depressed" is a predicate adjective. It follows the linking verb "seems".
No problem here.
I have the same problem; so far the problem seems to be in the transmission. Maybe the gear that drives the speedometer gear, won't know without taking transmission apart.
It has low oil or it has serious internal failure. With out a test drive and at leasta 1 hour diagnostic, no further can be determined.
Your kitten should be fine, but if you see anything strange, take her to the vet immediately.
Maybe he misses you.
maybe she is having friend troubles.