Can you get pudendal neuralgia or hypertonic pelvic floor from masterbation and friction? my clitoris sometimes has a sharp sensitiviry, and i've been getting throbbing in the area. i'm also having a feeling of pressure at the bottom of my vulva?

Masturbation by clitoral stimulation alone would not cause the effects you mention. If you have been inserting objects in your vagina it would be prudent to consult a gynecologist. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. Get HPV vaccine.

No. That does not cause pudendal neuralgia. Your symptoms seem functional. Try reducing masturbation and not using an object and warm baths. If not better then see a Gyn tho I am confident you will feel better