G'day mate.

No it is not carpal tunnel syndrome. That is compression of the median nerve. The symptom of numbing in the little finger is related to the ulna nerve.

I would recommend consulting your doctor, you should be looking for a CT scan of the neck, if that rules out a bulging/herniated disc then the entrapment is in the front of the shoulder or in the arm. You really want to get on top of this asap and get it treated before it festers into something that is a lot more serious and harder to treat.

Christopher