Sir I undergoes Angioplasty on 17-10-2017 since then I take proper diet and medicines. But after 4 month of angioplasty I feel vertigo and unconsciousness. On dated 19-05-2017 I undergoes fainting and unconsciousness stage for few minutes and recover itself. But after two week at 4 AM during sleep I undergoes same condition with sweating. There is no pain at all. Same day at 6 PM same condition with breathlessness. All test like CT Scan X RAY are normal. But Echo shows same evidence of blockage. Is it possible to undergo again angiography. Is it is safe. And condition is critical or not? I am in ICU since 2 May to 7 May My routine Ecg is normal since 3 May. My Blood pressure is always normal. Echo shows LVH WITH LVDD WITH hypokinesia FREQUENT ECTOPIC EF is 36%. This echo report is almost similar to the previous Six month old report but EF is 45% in that report.