I haven't been in my third trimester very long but for the past week i've had awful mid to upper back pain!! It makes me a little nervous, I figured it would be my lower back. IDK if its baby's positioning or my bra or just the added weight from my chest & stomach. Anyone else have this??? Ive been trying the heating pad & am going for a massage tomorrow, then maybe the chiropractor, but I dont know what else to do??