For about 13 hours now I've had severe cramps all the way from my lower pelvic area down to my shins. It's really painful and I thought sleeping it off would make it go away. It's still here this morning and my midwife's phone is turned off. I haven't seen any blood so don't think I'm losing it but this pain is so bad and I have to go to work in a few minutes. Can anyone tell me what is happening please?