Severe pain, discharge and watery fluid

Im 35 weeks, apart from painkillers,  having a bath and using maternity balls and hot water bottles. What else can I do for pain relief. For the last two nights and yesterday and today, I have been experiencing excruciating pain in my vaginal area ( it feels like pressure pushing down on the pubic area and the vaginal entry feels like pressure is forcing my hole to stretch open), pelvis and back to the point where its unbearable and I can't sleep. Ive been in tears from pain and I never really cry from pain. I was going to leave it and ask about it at my appointment on the 23rd but I'm in agony. I've had discharge that was snot like and clear, but only a small amount. I am having tightenings happen really frequently too and the pain is just getting worse and worse. I've contacted both the local and hospital midwives,  but neither of them have replied. What do I do ?I had a lot of thick snot like discharge which was white in colour earlier today, but I don't have photos or anything to show, and now I've been wearing a pad since and I'm leaking a lot of fluid which has no colour but has soaked the pad in about 1 hour