Doctor since more than a week i feel like i am falling from height feeling in my chest example When we go on a ride at amusement park and ride comes down from height we feel a wired sensation in chest close to heart like light weight feeling in chest and when this happens i took deep breathing its happening for 2-3 minutes only and gets normal it's happens frequent time in day and sometimes only 4-5 times but mostly in night and my BP is normal and i consult a chest medicine doctor yesterday and i told doctor exactly what i written here and i also told him i only take deep breath when i feel light weight sensation like i am coming down from height if its doens't happens then no heavy breathing and doctor said you are just thinking you have to take deep breathing just stop thinking this and gives me  Rexipra plus tablets which is for anxiety but my main problem is that sensation in my chest. So can you please tell me what should i do exactly  ECG or what ?