I suffer in page in front of vagina, painkillers don’t ease the pain?

I am a 27 year old normally healthy female. In the bit between my anus and vagina it felt like something was pushing out. It was intense pressure. Then my lower back started to hurt. It has been hurting without any respite for 4 days now. The pressure doesn’t feel as bad in my bottom but it’s still there. I am also experiencing shooting pains in the front of my vagina.
The pain in the back has got worse and had been keeping me awake at night.
it is mostly on the left side however the shooting pains in my vagina feel like they are on the left. (they only happen now and again, but i am sure they are getting more frequent) I have been lying in bed for 4 days, painkillers don’t seem to ease the pain.