Advice please

So many weird things going on with me! I'm on the pill but I missed it about 3 times this past month so I doubled up every time! I spotted all month, I'm assuming breakthrough bleeding? The week of my period I had nothing! I should have started my new pack on Sunday but I've decided not to take it anymore. Today I woke up to some pink/clear/sticky dishacharge when I wiped. I have had a major increase in my water intake dry stuffy nose and this weird sour/metallic taste on my mouth. Does anyone know what could be going on?