Vasovagal Syncope Prevent Passing FAA Exam (3rd Class)?

Today I went to the doctor to get a TB test. After being given the shot, I didn't completely pass out, but almost did. Two days before I got my tetanus booster and meningococcal vaccine and the same thing happened. I am in about 10 hours into my training and was wondering whether or not this could affect me passing my exam. The doctors told me it was vasovagal syncope. I'm really scared I won't be able to though. Please help! Expert's or FAA Examiner's answers would help a lot! Thanks.