Worried about lateness

Gale • Seventeen, dancing queen, two left feet.

Hey all, I was hoping someone could give me some advice

My period has been really out of whack the last couple of months. I know I'm definitely not pregnant, I just need to know of this is normal and that I'm definitely not dying.

I'm currently 2 weeks late and feel no signs of AF coming anytime soon. However my discharge does smell very metallic today, like it normally does when I'm on my period. (But no blood of any kind) I'm also really lethargic and am struggling to stay awake, plus have been really cold all day and have lost my appetite.

Is this normal?