My tailbone is bloodbath me don't know why.?

Well this usually always happen around when i have my spell.
But this time, excuse my language, the ruin of my butt line not sure if that's where on earth the tailbone is hurts sooo bad..in attendance is nothing nearby tho, it does feel a touch swollen but im not so sure. It hurts when i sit, get up or even verbs a chair, getting into my sports car is close to impossible without horrible strain. Laying flat on my back on the floor is too stinging, i don't know what this is?...I did have a child 18 months ago but i doubt that have anything to do with that, not sure once again.
Does anyone know what this might be from?
It's be going on for 3 days now and the throbbing hasn't gotten any better.
I also want to let you guys know that this month i be late on my cycle for roughly 3 weeks, and no not pregnant lol i should know if i had sex or not.
It is really bugging me, any support?
Answers:

I really need to know what this ability,is this normal?!?

I in reality had duplicate exact problem...turned out I fractured my tailbone when giving birth, but the 'pain' be supposivly my 'healing' from inbred childbirth and not picked up on for over a yr later!

I concluded up seeing a chiropractor for relief (not much you can do for it medically speaking) and I also get one of those lovely 'donut' pillows (medical supply stores) and started using that to sit and lay on my back next to (if watching TV or reading etc) helped alot! I also have a small sports car at the time and the form was making it worse. Hard to obtain in and out of the saloon for pete's sake - I'd almost be in tears! Took a while for it to find better, but it finally did. I could not lay on my back or do situps, or if anyone get near it...(bumped it or whatever) I almost go through the roof! Anyway...double check with a chiropractor - find a referral for a good one close you for some help. But start by getting that pillow!! :o)

Bc give somebody the third degree?

QUIT DOING IT IN THE BUTT!

Why my vagina became dry during sex?

go to the doctor

hope you carry better..