Vagina darkening and Tightness

Some people say it’s common but no one I know has had a problem with it 😩 my vagina and inner thighs got DARK. Not just a little... you can straight out see that shit and it’s REALLY embarrassing to me. Me and my boyfriend have been together for 5 years and believe it or not I have NEVER let him see my body fully naked or in the light it’s ALWAYS dark as fuck and it really sucks.... I know he wouldn’t care but I do and I would want to feel confident as to the tightness my boyfriend told me my pussy used to be tight and now he thinks I’m loose which hurt my feelings lol 😭😂😂 Any tips ?