I'm Scared and have no one to ask or turn to? Please tell me I'm not the only and it's help!

Okay so last week... I hanged with a person i recently met. and We was drinking and end up yeah know. it happened days before my monthly. After days later into my monthly it's started hurting down there. Now i have 2-3 little bumps on my vagina inner lips. & i have small white pimples that started on my arm. which isnt serious but i have a pimple near my area. ,& On my vagina inner lips its a small pimple like 3 tiny ones. They only hurt when i wipe or anything Rubs or touch it. it doesn't itch or anything but painful when something touchs it. Can someone please please help me out?

if its okay can you put picture of it for better idea

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This is it. what