L.R.
Hi S.,
Have you had any problems with high blood pressure? I from time to time would have this ache between my two shoulder blades. Rubbing wouldn't help, heating pad wouldn't help, new position wouldn't help. About 10 days before my due date, it got so bad I decided to go to the doctor about it.
Turns out I had preeclampsia and something called HELLP syndrome and they induced my labor. This was the only time during my pregnancy that I ever had high blood pressure.
If you have a quick stabbing pain, maybe this isn't it. But if you have a constant ache that just won't seem to go away, get to the doctor...expecially while you are feeling it. Never can tell.
Good luck!