So fed up with sleep

I'm 39 weeks 2 days and am fed up with not being able to sleep.

I need to sleep on my left or i get horrible heart burn but my hips are killing me and my leg goes dead pretty much straight away if i do.

If i sleep on my right i get bad heart burn and painful hip which wakes me up as well.

I need to switch sides to give the other side a rest but i cant and i wake up in agony. Am getting about 3 to 4 hours of broken sleep a night and its driving me crazy.

Really dont know what to do :(