Herpes does not usually affect the inside of the mouth, as you say. Canker sores are painful, which it sounds as though yours are not. I am therefore not sure what these are. I am sure that squeezing them till blood comes out is not doing you any good. I advise you to leave them alone and show an untouched one to a dentist or oral surgeon. These certainly don't sound serious or sexual. Have someone look, since they are worrying you.
Best.
Dr. Rockoff