Itching, discharge and odd bumps

OH MY GOD ! my vagina is starting to scare my a little. A few weeks a go I thought what might have been a yeast infection but no cottage discharge instead very wet and watery. This progressed to a itchy vaginal entrance then progressed to a yellow-ish discharge having to change a panty liner every 15 mins. Now bumps have popped up and my period come on and still very itchy. can any one help?

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