Pain in left chest for few seconds. Me.

Hello doctor, I got Covid on mid of November,2020 and got fine in home quarantine only. I had palpitations for few days for which I was put on Prolomet XL 12.5 for 3 months which was stopped then. I'm having no comorbodities, my weight 85 kg and height 5 ft.7 inch. I used to Google body symptoms a lot and post Covid when I had palpitations few times I gradually grew cardiophobia. Post Covid in last few months from December to April, I did my ECG and 2D ECHO both twice and 24 hours Holter once which always came normal. For last two days I'm having little indigestion and today after lunch I had mild pain in heart area for which went away soon after few seconds. Please suggest me if I need to do further investigation of my heart or it's just anxiety. It will be of great help to me.