No sores that were visible but could be felt by my
tongue and finger. Then after 6 days I got a canker
sore on inside of lower lip. (Please note that I do get these regularly but usually only one at a time and gone. I also have a habit of chomping down on my tongue while eating or whatever). My penis is clean. Nothing unusual any place. Her vagina tasted clean; no odors, nothing unusual. Should I be worried about my canker sores? In general, how often and when a complete test is warranted?