Hi. For the last couple of days I noticed when I lie down to go to sleep I have this heaviness between the breasts. I also feel like my heart is beating harder. I have tried lying on my sides, stomach, but it doesnt subside., once I get out of the bed I belch a few times, but same problem. I am wondering if its just the heavy breast, the beginning stages of sleep apnea, because I find myself having to consciously breathe, or if its just a horrible case of indigestion.. I really want my sleep