Sorry if everyone who suffers already knows this but i felt i must Share a tip i found on another website & have implemented.
If it is the worst for you while you're in bed you just have to get a memory foam mattress. They are expensive but you can get the topper for around £70 quid. I was crippled with crutches before xmas. Can walk virtually normally now and although it still hurts its so much less so. Hope this gives hope to others.