Anxiety is not a disease rather than a disorder of mind.
If severe you need to consult psychiatrist and or clinical Psychologist for help.
Dizziness feeling can be a part of this but need more history to reach to this conclusion.
It is good that you are having chestcpain but your cardiac evaluation is normal. That should decrease your anxiety.
Because cheat pain could be due to GERD.
Next Steps
You are feeling anxious may be because you have not completely accepted your condition and always think that there is more to know. So please discuss in consultation platform.
Health Tips
Anxiety can worsen your present symptom.
stop worrying and consult psychiatrist and general physician and follow up with your treating doctor