I dropped my maltese dog 5ft on hardwood floor and hes shaking what do i do?

I came home from school and i was excited to see my dog so he ran up to me and i picked him up and he was so excited and he squirmed around And i dropped him on hardwood floor and im 5'3 and he likee got up then walked away and did his own thing after i was like aw r u okay! And now hes shaking