My a1c is 5.8(pre diabetic) during 1st home test my heart was racing, i was nervous. fasting result was 119. could this affect result?

No: Aic is not affected by short term issues, like being nervous. Both your fasting glucose and A1c are consistent with being pre-diabetic. You can help your cause by losing weight and exercising 30 minutes/day for at least 5 days/week. See a doctor or a nutritionist for dietary advise. You have about 60% chance of avoiding diabetes, if you lose about 10% of body weight, exercise and watch diet.