Please help me I'm so worried

so I’ve had these bumps around my vagina opening that’s been there for some years and maybe more because I found them about 3 years ago I think and it’s stayed that size for a long time until recently as I am 16 going on 17 a few seem to be getting smaller, I think that might be normal tho because I’m still going through puberty and changes of course, but I noticed this one is almost gone and im just getting off my period. Could my periods be slowly changing these bumps as well cause I notice they feel really soft when I’m on my period. please help me understand?

pictures?