Intermittent Chest Pain and Weakness.

I am 33 years old male with 100kg weight and 6 feet height. I take metoprolol and olmisartan for my heartbeat and High BP. I have been having on and off sudden weakness for instance last night I have sudden onset of weakness in chest and body accompanied by racing heartbeat and BP of 136/81 which subsided after an hour. Today morning I have had same issue but this time it started in stomach ache and belching after which I had chest pain in left side rapid heartbeat and weakness in both legs ( at that time I was very anxious because of thought of having left chest pain). My BP was around 130/75 that time. leg weakness subsided in almost 2 hours. Since then I have stomach upset and I had went lo few times. Is it a gastric issue or cardiac issue. I had a 2D Echo a month back and coronary angiography in January this year. Both came normal. Im attaching reports.