i’m entering 15 weeks, and can’t sleep comfortably anymore. when i sit still, i feel like my heart is beating so fast or intensely, it’s like a pulse throughout my insides. I feel this sensation mostly under my chest. and am feeling an overall unsettling motion inside me. so weird to explain. hubby said maybe it’s baby moving? i honestly have no idea. i feel like it’s too high to be baby bc it’s not in my lower abdomen area, more upper belly/lower chest. and i feel it more when i am laying down. what’s happening to me?!?!