Hello and welcome to HealingWell. Medical studies show that homocysteine levels above 6.3 are unhealthy and associated with a steep, progressive risk of coronary artery disease and heart attack. Reference: 1Robinson K., et al. Hyperhomocysteinemia and low pyridoxal phosphate. Common and independent reversible risk factors for coronary artery disease. Circulation. 1995 Nov 15;92(10):2825-30.
This is definitely an issue that you need to talk with your Cardiologist about. I am sorry I could not be of more help.