NK - when in doubt check it out! I fell, missed a curb, on January 16, 2018 about 1.30pm - the left side of my head hit a planter [can't recall if was flag stone or what but it was SOLID] and I broke my shoulder. Ambulance to the ED - CT was done and I didn't have a brain bleed thankfully, wound required 3 or 4 staples to close & it bled like a stuck pig!
My ex brother in law, non-ITPer, fell and hit his head on the tile kitchen floor and he walked around with a brain bleed for a few week before he went to the doctor.
A friend, another non-ITPer, recently fell but doesn't remember how it happened, ended up in CCU, then ICU, then rehab - no outward sign at all for the very bad brain bleed but he was found passed out on the floor.
So you know - why worry yourself just go in either to the ED or give your doctor a call, even at night if he/she isn't on call there is a doctor on call who can help you.
Good luck!
"Instead of wasting your time worrying about symptoms, just get it checked out" -Nieca Goldberg, MD