let's see if you can help me identify this other symptom I have lately, which scares me a big deal

sometimes, and increasingly often, like now it's almost every day, I wake up in the night with one or both my hands and arms totally frozen, the lack of sensitivity seems to radiate from the neck to the shoulders and the arms. As soon as I move the feelings come back, but sometimes, as for example today, still a tingling sensation is left in my left hand, in the external part, where the ring finger and the little finger are, and a strange feeling but more subtle is also present in the neck and arm.

I suspected it could be carpal tunnel syndrome, but then I read that it oddly doesn't tend to involve the little finger.

Can it be related to hypothyroidism? or diabetes? I dread going to the doctor and have a diagnosis, do you think I should do it in order to know better how to then address my problems my own way?