i just felt a spasm in what feels like my heart along with a gas-like pain/twinge. it lasted about 1 minute. i have not eaten today but had a black iced coffee about 2 hours ago. this happened one other time a few days ago. i'm a woman, 55 years old, 5' 1", 135 lbs. with no heart condition. i have acid reflux — currently not taking any medication for it. I have allergy related asthma, smoked for 30 years (haven't smoked for 7 years) and had non small cell lung cancer 7 years ago--no recurrence after chemo and surgery. I take zoloft, atavan, every several months i take otc acid reflux zegerid or prilosec.