Shells I am in the same boat with the transverse lie. I can tell when he flips to breech because he starts doing a little dance on top of my bladder and cervix which HURTS! Most times he is content in transverse, which is at least a bit more comfy on the bladder, but as you mention, it's more uncomfortable for the ribs and heartburn issues, etc. I've developed a pretty constant pain on the right side of my back, about middle height (under my ribs). By day's end I'm almost in tears with it. I am guessing he is lying with his weight more to one side or the other and that's what is pulling unevenly on my back, but I dunno. Like you, I'm just READY though I don't want him coming out till it's safe!
We get another scan at 35 weeks and I'm curious to see if they move my due date or talk about inducing, because at 25 they already warned us he'd be a big baby. We shall see.
Hang in there!