From what you have written here it seems your bubble test was normal which to me translates to no PFO. Remember I am not a Doctor.
Call your Dr. and ask for an explanation re why they said you had a PFO in the first place if they did not do the bubble test.
An echocardiogram can be done to diagnose a PFO. If the PFO is not easily seen, a cardiologist can perform a "bubble test." Saline solution (salt water) is injected into the body as the cardiologist watches the heart on an ultrasound (echocardiogram) monitor. If a PFO exists, tiny air bubbles will be seen moving from the right to left side of the heart.