Fingers going numb with really bad arm pain

I’m not sure where I should post this… Every morning I wake up to my thumb, pointer and middle finger and my arm in so much pain. I noticed it’ll go numb when I’m laying on my right side then it just starts hurting. But if I flip over most of the time it stops but then my left arm will do the same. But it’s no where near as bad. Sometimes I have to lay on my back and cross or bend my arms at the elbow to get it to stop. What could this be? I don’t have anyway of getting to an appointment if I make one right now.