Receding Gum Line Behind my Lower Front Teeth?

I'm not entirely sure if my gum levels are normal or not, and it worries me, because I realized in the mirror the other day that I can see lower bits of my teeth.

I've tried attaching the best photos I could get (it's kind of difficult). Every other part of my mouth is perfectly normal.

Am I worrying for nothing? Are my gum lines perfectly normal? Or should I see a periodontist?

 

Looks good to me.

 

Okay, I am also going to attach some more pictures for a maybe clearer view. I plan on going to a general dentist soon anyway. My front teeth in general worry me, but maybe I'm just paranoid.

 

You're overstressing, and you're not paranoid, you're just a bit neurotic.