Sharp needle pinch pain heart side.

I tested TMT positive last feb 2020,immediately angiogram has been done which came as absolute normal. I am not diabetic, dont have hypertension, cholesterol and triglycerides are under control l, since last year August i am feeling sudden pinching pain in my heart. Immediately underwent ECG and x ray which came as normal again. Blood tests like DDimer and Trop T came as normal. When all the reports are normal iam not sure why this chest pain is troubling me. It is not hallucination but it very much exist.. I don't know when this pain comes suddenly sometimes two to three times a day, post which my mood, work and sleep would be effected. I am not under any medication now, no doctor prescribed any medicine considering everything is normal. When this sudden pinching pain comes I feel like I am going to get attack, I stopped sharing this problem with family as they are treating me as psychiatric patient as Nothing came out in reports. Please help me guiding how can I overcome this pain..