Do you have anxiety problems?

I don't know if this is an anxiety-related feeling or not.

Pregnancy can cause a number of odd feelings. If you have swelling in your fingers, that could be the cause, even if the swelling is minimal. Just put your fingers in some cool water for some relief.

If you have excess swelling, you will want to get yourself checked for edema.

Or keeping your hands above your heart. But I agree, if it is really bothersome, it should probably get checked out because that could indicate circulation problems.