Hi,i am 25 yrs old male,2 years ago i started having this palpitations and lightheadeness,been to doctors who run all blood test,thyroid etc and all was normal,consulted a cardiologist who did ecg
stress test,resting ecg,echo,24 hour holter which shows 150 bpm,but was told it was normal,a tilt table test where i did feel faint during the test but was told BP and ECG was normal.Went to neurologist who did simple muscle strength test and said it dosent sounds neuro related.