Hi, I have recently noticed that when I lay down, if I press my hand against the lower part of my stomach, there is some kind of lump that moves to the upper part of my stomach. When I inhale, it goes back to its original position, unless i keep pressing, then it stays higher. I feel this lump most nights, but not all, and I also feel an odd pulse- like a heartbeat- in my stomach, but I don't think it is located on the lump and I don't think the pulse moves, but the pulse is visible. I don't feel either the lump or the pulse when I sit or stand and they are not visible then. What can these two things be? Please help!
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