What Causes Numbness In Thumb And Dizziness After Finger Gets Jammed?

hey I jammed my thumb in the door yesterday and it instantly bruised up underneath my nail. its definitely not broken but there is a lot of pain. i woke up at 2 in the morning last night because my thumb hurt and got up and was dizzy. i have been dizzy all day today and was wondering if it could be cause i am hurt of lack of sleep maybe