Hurt like this when I have my period??!

I never thought of it not being normal but when I have my period my vagina opening area and sides of vagina physically hurt, like bruising/cramp feeling...

I know having cramps in ovary area and inside vagina can be normal but this feels like it’s on the outside making the outside of my vagina feel “heavy” stretching feeling in a way.

Why does this happen??! Should I be concerned or ask my doctor?

I’m 25..and I’ve just recently started questioning things about my body I never gave thought to.