hi ,am in my 23rd week.my tummy is growing day by day.all gud.i use to walk daily for an hour.from pazt two days am not able to walk.i feel heavy in my stomach and am not comfortable.if i stop walking food wont get digested and i get cough due to reflux.should i stop walking?or shall i take any precautions?wat kind of precautions i shud take?pl guide