Sounds painful. The tailbone or coccyx and sacrum are all in that area and it sounds like you injured it a bit. I'd guess it is swollen. Can you tolerate ibuprofen? That works to reduce swelling pretty well along with ice. https://my.clevelandclinic.org/health/diseases/10436-coccydynia-tailbone-pain That link has suggestions on how to relieve it. If it doesn't get better, see your doctor!
It is hemorrhoids - not all of them cause pain. The high blood pressure that sometimes causes them can leave the area still swollen and distended for months - if not years.
From the Mayo Clinic:
The best way to prevent hemorrhoids is to keep your stools soft, so they pass easily. To prevent hemorrhoids and reduce symptoms of hemorrhoids, follow these tips:
Eat high-fiber foods. Eat more fruits, vegetables and whole grains. Doing so softens the stool and increases its bulk, which will help you avoid the straining that can cause hemorrhoids. Add fiber to your diet slowly to avoid problems with gas.
Drink plenty of fluids. Drink six to eight glasses of water and other liquids (not alcohol) each day to help keep stools soft.
Consider fiber supplements. Most people don't get enough of the recommended amount of fiber — 20 to 30 grams a day — in their diet. Studies have shown that over-the-counter fiber supplements, such as psyllium (Metamucil) or methylcellulose (Citrucel), improve overall symptoms and bleeding from hemorrhoids.
If you use fiber supplements, be sure to drink at least eight glasses of water or other fluids every day. Otherwise, the supplements can cause or worsen constipation.
Don't strain. Straining and holding your breath when trying to pass a stool creates greater pressure in the veins in the lower rectum.
Go as soon as you feel the urge. If you wait to pass a bowel movement and the urge goes away, your stool could dry out and be harder to pass.
Exercise. Stay active to help prevent constipation and to reduce pressure on veins, which can occur with long periods of standing or sitting. Exercise can also help you lose excess weight that might be contributing to your hemorrhoids.
Avoid long periods of sitting. Sitting too long, particularly on the toilet, can increase the pressure on the veins in the anus.
Hello~I would try putting some ice on the area and see if that helps the swelling. If it continues to hurt, then I would see your physician.