Thanks for your question on Healthcare Magic.
I can understand your concern.
First of all, no need to worry for heart diseases for your
chest pain as your extensive cardiac work up is normal.
In my opinion, we should rule out systemic causes like anemia, thyroid diseases,
vitamin B12 deficiency etc for all your symptoms.
So get done
hemoglobin estimation, thyroid function test and vitamin B12 level.
If all these are normal then no need to worry for much.
Sometimes uncontrolled stress and anxiety can also cause similar symptoms.
Do
consult psychiatrist and get done
counselling sessions. Try to identify stressor in your life and start working on it's solution.
You may need anxiolytic drugs too.
Don't worry, you will be alright. Avoid stress and tension, be relax and calm.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.