Why is it that biologically Ineed to have ? I get yeast infections if I go longer than 3 1/2 to 4 days w/o.

I know this sounds wierd! But it happens everytime! And I don't know why. I wonder if my body just needs ? Does this happen to anyone else? And not to give too much info. but masturbation does not do the trick! Hit me up let me know PLEASE!!! Very embaring but need to know!