18 year old male and virgin. i usual masturbate with saliva and i am very worried about risk of infection. can you infect yourself with your own saliva, if dental hygiene isnt best? (mild gingivitis) i am very stressed&worried about being infertile

Masturbation concern: Please put your mind at ease. You haven't caused yourself to be infertile. You wouldn't have given yourself an STD.

Infection: What you should be worried about (as you can't give yourself a STD) is your oral infection. Even mild gingivitis isa bacterial infection that has been associated with heart disease, stroke, kidney failure, etc. See a Dentist for an examination and professional cleaning. Then follow all instructions as gumdiseasewill not only cause local damage, but also systemic damage. Clean up your act.