Left side sharp chest pain n back n hand

Actually I feel sometimes sharp left side chest pain near left bone of chest. And it radiants to back and hand some times also and I get very much nervous since last 4 months and also having bp high of 165/85 I have went to more than 4-5 cardiologist got admitted for 3 days but no issues as per doctor did more than 5-6 ecgs till now only one ECG at starting was bit fluctuating but other 5 was normal. 2 times 2d echo, tmt test, lipid profile, chest x ray, adomone sonography,also didi mri of brain and neck. Also tested many vitamin, calcium and all test only d3 and b12 was less. After doing all does test and all normal still facing problems Please figure out what can be reason please doctor. Need solution for this it's getting frastured