It's awful, isn't it? I have it concentrated in my groin, and moving about/turning over/getting up can be agony. I had referral to physio via my consultant and through them I have:
*crutches (which can seem like a pain in the ass but do help to reduce the weight bearing down on your pelvis/groin/hips).
*hydrotherapy - mild exercises in a heated pool at the hospital. The feeling of weightlessness is wonderful, and I also go to my local pool on top of this just to float for an hour. Your body feels heavy when you get out but the water is extremely soothing.
*a slide sheet for turning over/getting in and out of bed. Not getting on brilliantly with this as it is noisy and sticks in you but some people really benefit from using them.
*been given advice on painkillers - in the first instance paracetamol, then co-codamol, and if horrendous you can take codeine or tramadol. This is a personal choice really but the GP is happy that they are safe. I try and stick to paracetamol but take co-codamol if it is agonising. The advice was, interestingly, to take pain-relief pre-emptively rather than reactively, so codeine, for example, three times a day rather than just when you are really suffering.
The other thing that has really helped is a simple pillow between the knees when sleeping/lying down. Helps to balance the weight and really does make a difference. I was also advised to get a support belt but they are not available on the NHS here so trying to avoid that if necessary given I only have 3 weeks left, but would have done so if all the other support wasn't in place. I feel very fortunate that so much help is offered here (through the big teaching hospital).
So I would see you midwife for a referral to physio, speak to your GP about more effective pain relief and if you can - get in a pool to float. Good luck!
p.s. I seethe when people say that it is just normal pregnancy aches and pains - arghhhhhh - it so isn't!