Welcome to heathcare Magic!
Most likely you have suffered blunt injuries.
Still because you fell with the thud, you should get a Chest Xray and a Pelvic x ray
just to rule out fractures
, which I am sure are not there but still important to rule out.
injuries trouble for 2-3 days so take OTC Painkillers almost liberally as required.
Wish you a great health!