Hi... If your doctors (cardiologist/physician) have came to the conclusion that physiologically everything is normal and it is only psychological (anxiety induced), than you only need mental health treatment. It involves both Therapy/Counselling and Medication (if required).
The way you have explained, it looks like a case of hypochondria but you have mentioned OCD. Is it a diagnosis provided by a Psychiatrist or you are just using it for explaining your obsessive compulsive nature about your health condition?
Next Steps
Consult a Psychologist for Counselling and a Psychiatrist (if required).
Health Tips
Mr. Gunjan Maithil
Senior Psychologist
Cell: Nine Six Seven One Three Zero Three One Three Four (whatsapp)
Website:https://gunjanmaithil.wixsite.com/therapy
App: http://wix.to/fECHB08?ref=cl