I hav gad and 9 mths pregnant and whenever i get scared and my heart palpitate the baby moves and most times gets hiccups because of this. why is that?

Twitching diaphram: This is quite normal. It's due to extra occupancy inside you. More pressure on your diaphram can tweak the nerves and cause that muscle to vibrate - hiccups! It should not harm the baby or you even if it is annoying. If it's too uncomfortable, call your OBGYN for advice. Try to minimize anxious situations - consider a CBT therapist - it will be a good relationship for post delivery too. Best!