My hamster makes a sort of clicking and wheezing sound and she is a new hamster and she is quite scared and frightened so I assume it's just your hamster being a bit nervous if it's a bit more fast paced. If the clicks are slow, your hamster is happy
. Though if you do see signs of illness for example; a hunched posture, hiding a lot, dull fur, etc, you may want to visit a vet, otherwise, your hamster is doing well. Just keep an eye on your ham ham and do some health checks to see if your hamster has any problems or troubles. As you stated before, your hamster is eating, drinking ,etc. I wouldn't worry too much. Though if you are still worried, just go to a vet and your vet will see if your hamster has any problems.