is the feeling a little like butterflies in your stomach, or nerves, or like loosing your guts? i get this feeling and i think it is when the baby changed from kicking to rolling and squirming around dur to lack of space in womb from growing. maybe your baby has changed its patterns of movement. i know how you feel about being paranoid!! sometimes i think i am going crazy! see your doctor if you dont feel better about the issue soon.