symptoms and metallic taste

Help!!!

I have been experiencing all kinds of strange symptoms, on searching the Internet it appears most are linked to pregnancy.
Basically my period was 5 days late. When it did come it wasn't like my normal periods. It wasn't heavy at all although there was more than just spotting, but it only lasted 2 days. I have had some other symptoms too. Just before my period I was struggling to get up in the mornings despite loads of sleep. I was also feeling tired in the afternoons too. I have been feeling dizzy, and going to the toilet more often. The latest things I have noticed is the appearance of two freckles on one of my nipples, and darker veins on my breasts leading to my nipples as well as on my shins. I have also had metallic taste on the roof of my mouth. I have also had an increased amnt of discharge (sorry for the detail!!) I have not done a hpt yet, as I'm not sure if it's too early? (the bleeding stopped on sun evening) Any advice would be greatly appreciated!

Thanks for your help in advance!!!