Sorry to hear you're going through this, it seems the past month that's all Ive heard - I went to my doctor not feeling well he told me nothing is wrong - happened to me too.
5 years ago I went to my PCP with various symptoms the dr did an ekg and tests and said you're fine - get up off the couch, lose weight, exercise and all your problems will go away
The next year I changed pcp's when I was still feeling the same and passing out more, increased dizziness, out of breath. They did more testing and said nothing was wrong again, but the doctor was nice, informative & explained things like the other dr didn't, so I stayed with their practice. I found out I had an infection and was put on Levaquin and felt so much better for awhile after. We lost our health ins a few months later so I didn't go back.
About 6 months later, I started gaining weight and the PCP's office opened a "spa" weightloss clinic so I joined since he had been my pcp for 2 years. He did tests, ekg's etc and had my files transferred from inside his clinic to the spa.
The point of my rambling: I trusted this doctor, he knew my history and had all my test results in his file and completely denied telling me I may have a heart problem.
I just found out in July that I have been having "serious"frequent pvc's, vt, svt & have mild tricuspid insufficiency, trace MVP, my left ventricle has been slowly thickening due to the pvc's weakening my heart. My heart is beating 54,000 extra times a day and every 3rd beat feels like my heart stops for a sec.
Luckily we got health insurance back this year and I broke 2 toes went in to see a new pcp and he picked up on my heart problem just by listening to my heart. I don't even want to think what would have happened to me if he had not picked up on it - the drs say my heart would have failed/heart attack in a short period of time because of the stress on it, but thankfully I have a structurally normal heart.
You should definintely keep checking, doctors don't know our bodies like we do - if it doesn't feel right it probably isn't and I ignored so many symptoms because I was told by 2 doctors nothing was wrong.
Get your test results and check them over, if you dont know what something is, ask or check here - web md etc - ASK questions I wish I had 5 years ago or even 3 years ago. I'm scheduled for surgery in Aug; I went for a 2nd opinion & my EP will be out of the country now for 2 weeks :(
I think you should get more testing done. My husband is 48 and was feeling the same thing you feel. His, like yours, come and go and he is also out of shape. He just wore a Halter Monitor for 24 hours and we will see what that has to say. Of course, he did not feel the flutter when he wore it. I would also keep a journal as to what you were doing when you feel the flutter, date, time, how long it lasted etc. We were able to link most of my husbands flutters to stress. This was connection made by him and his doctor together but Dr still ordered the 24 hour holter. His doctor is wonderful. You need to be satisfied. Go for a second opinion or back to him with the data you gathered in your journal. To answer your question, yes, I believe that if you had a palpitation during your stress test they would have seen it. While you are working hard, every beat of your heart is being recorded and watched by a doctor. If you had any signs of trouble during the test, they would know. If you had something wrong with your hearts electrical system, they would know. I know that for a fact because that is how they found our 12 year old sons heart condition called CPVT. Keep us posted
I would definitely get more testing done. A stress test cannot tell the whole story, and with your symptoms, I feel it warrants further looking into. Did you ask what exactly did he mean by your heart being "out of shape?" Just look at Tim Russert as a good example, he had a good stress test the day he died of a heart attack! Be pro-active and look further into this until YOU are satisfied.