Had a stress test done dec 15th 10%false positive on it. at the hospital cardio doc said ct angiography now he says no. can i get one without a docto. referral because i have been left with the doubt?

Second opinion: You'll need a physician to do the angiogram, so you can't get one without a doctor. If you doubt what your doctor has shared with you about your condition, you can get a second opinion from another physician. If s/he feels it's indicated, s/he will recommend further testing. Doctors don't want to expose patients to undue risk, by doing more invasive procedures than needed.

Depends: Your cardiologist will likely be speaking with your primary. It never hurts to suggest it to your primary and let your physicians decide. There are risks with cardiac ct, as well as cardiac cath. If your cardiologist feels you don't need either, then i would think there is ample reason to avoid any further procedures at this point.