Hi there. I'm 10+3 and have been getting occasional back pain (mid upper back - just beneath where you're bra strap would be). It's worse if I've spent the day vegging around in the sofa (I know - don't do that then!)
It's particularly bad at night and almost impossible to get comfortable so my sleep is then really disturbed. I've tried all combos of pillows under my head /knees / propping me in various places.
I have big boobs (I don't think they've started to grow yet - they've just always been big - 36KK) so I don't know if this is part of the reason. I've never hand back pain before (this will be DC1).
(also, we got a new super duper mattress with a gazzillion coils (or whatever) a few months ago so I don't think it's the bed.
Any thoughts?