Ob-Gyn questions? Ask a gynecologist online.
How tall are you? How much do you weigh? Can you attach the photos here? Does anything make it better or worse? When did it start? Is it consistent? Is it getting worse? Any other symptoms? Are you aware of anything which might have triggered it? Are you sexually active? If so, do you use condoms? Any medical problems? Any surgeries? Any family medical history?
You should not douche because it removes good bacteria in the vagina. It could be psychological. You should see your doctor to get medication for anxiety. If your doctor thinks it is necessary, you should see a psychiatrist or a psychologist.
Because you have felt the sensation before on others parts, your anxiety could cause it.