kate - don't know which part of the country you are in but have you got a pool you could visit to float in for a while and let the water support your pelvis and stomach for a while and let you relax the rest of you. Sometimes I find milk helps with heartburn. Is there anyone who can watch your four year old for a few hours while you do this so you can just bob around rather than having to watch them too. You have every right to whinge - this stage of pregnancy can be really trying. Hope you find some relief soon