Tingling sensation vulva

Ive been having a very mild  tingling itchy feeling in vagina area. Yesterday i experiences lower back pain for a couple hours that was cured by aleve. Ive noticed slight lower abdomen pain mainly on left side but also in middle. And i cannot really tell but i may have a slight increase in urination. I have been tested a year ago for herpes a couple times and other STDs all negative. I have been with the same person for years so the likely hood of an STD is low unless it was a faulty test. PLEASE HELP.

[KORY68]

Yeast infection.
As for the lower back pain and abdomen pain - sounds like menstrual cramps that can use Midol Extra Strength. But sometimes lower back pain signifies things regarding kidneys. Could be a slight infection. Those things are VERY painful so you would know weather it was kidneys vs. back related. Hope this helps.