Hi! I m an 18 year old female, who for the past few days/weeks, I ve had some pain in my chest, but today it was also my stomach, lower intestine, and a bit in the arms and neck. I freaked out, thinking I was having a heart attack, but if it s been happeening for a few days, I d pretty much be in the hospital by now if it was a true heart attack. I also haven t really had any shortness of breath, but a little lightheadedness because of not drinking enough water... is it a heart attack though?