I get kinda like that too, the first time it happened was about three weeks ago, I was driving home from work, all of a sudden I felt a heat wave rushing through me, then i couldn't breath and felt like i was going to just drop. I went to the ER, I was scared to death, they checked my pulse and blood pressure and checked if oxygen was flowing through my body, all was fine. There was a long wait, so I went home, I was feeling better after they sat me in a room alone with my fiance. I was scared it would happen again, so the next week I was terrified, work was a pain to get through, I kept feeling light headed, I finally cracked and went to see another doctor, who started telling me I probably had a small heart attack, but he was just trying to scare me, he gave me some ativan and it has helped a lot. I was still freaked out, so I went to have a full check up done by another doctor, bloodwork came out fine, no cholesterol, no problem with blood sugar levels, nothing, also passed an electro-cardiogram to make sure my heart was fine, doctor said it was but that i should do the test to reassure myself, he told me it was stress and that I needed to learn to deal with stress better. It's been better since then, he gave me two weeks off work to rest too, but today it's been bad, i took a pill this morning and it's helped but we just went to the mall and i started feeling light headed and like i couldn't catch my breath (yet i was breathing fine) at this point, i know i'm physically fine, but I'm still having a seriously hard time dealing with this. I just wish it would stop, I don't feel normal anymore, I'm afraid to drive alone, I'm worried about going back to work, I don't even like getting out of the house.