This Is So Emberssing But Recentleynwhile Shaving I Noticed Little

This is so emberssing but recentleynwhile shaving I noticed little tiny dark brown spots on my inner vagina lips and the outside area.I had twins about a year ago got chckd and was clean but I have had thoughts my finance is cheating on me so I'm always so so nervous about getting something what could these little dark brown spots be ..I've also noticed new freckles up and down my arms all of a sudden too