Sorry ruth, I misread what you posted. I thought you said you smoked pot last night and experienced the shaking symptoms…but you have not smoked it for a long time it sounds like.
I am wondering how much food you are eating throughout the day? Are you eating any snacks between meals? Weird things happen when you don’t eat enough and this might explain it. Otherwise I won’t examine this any further because I wont’ be much of help.