vibration feeling😳

So i been feeling this vibration feeling inside my tummy everytime i touch my baby and it only happens when i lay down no matter what side. Had an appt today and asked my doctor and he said hes never heard of that before Do any of you ladies get the same feeling? Kinda worried but when i get up babygirl moves so its a relieve after btw im 34 weeks Nd no its not hiccups