Can anyone help with what this might be? My husband is 47 and has always been fit and well.in the past couple of weeks he has felt generally unwell and has gone on to develop chest tightness, feeling dizzy and short of breath. At the weekend this ended up with me calling him an ambulance as he was grey, breathless and dizzy. Ambulance did all of tests and meds for a heart attack and sent him off to a&e. He was back home within a few hours as ecg and bloods were all fine. However he is still unwell at home but is concerned that people will think he it faking it or it is anxiety (although he has never suffered with anxiety before). Should he go and see his gp or are the tests from a&e conclusive?