Sox, that's how I've lost mine too. I've started having one light meal and one heavier meal. I also cut out sweet tea for the most part and down water mostly. I try to stay busy so that helps. If I am not busy it's harder. I have popcorn every night for my snack.
Judy, I was having similar issues with my heart. It would start all of a sudden palpitating and it was like something was taking my breath away. I can usually "meditate breath" through it and it will end. But never lasts long enough to have a doctor look at it. I haven't taken meds for it and my EKG was normal. of course it was normal, I was palpitating! haha It may have been anxiety attacks for me even though I was never feeling anxiety.
Hope your problem isn't real serious.