Welcome to HCM
After going through your history,your chest discomfort
may not be organic as it transient but still you can go for ECG to rule out any cardiac cause,I hope ECG should be normal.
If you are taking any anti anxiety
medicines, you must take continuously as missing medication can precipitate such episodes usually Beta Blocker
are given which should be tapered off in consultation with Physician.
Please do not worry you have no serious problem,and try to relax and please join some yoga and try to find some time for meditation
which helps to calm down our minds.
Have faith in almighty.
Good luck to you.