Yesterday I was at work and I had a strong metallic taste and smell that lasted for about a min. It didn't last long but I though I would of had a nose bleed or something but I didn't. Me and my partner don't have protected sex and I'm due for my period this weekend. I haven't come on yet but I don't want to make assumptions when my period could just be a little late. Just wondering if this has happened with you ladies at all before missed periods. Plus I've been really cold lately .