The smells are from bacteria and yeast. Its normal to some extent, but sometimes when your immune system is weak (have a cold) the critters can increase in population. Also, oral contraceptives allow more yeast to grow. I would take "Fungal Defense" by Garden of Life. It is excellent for killing fungus, yeast, viruses, bacterias and boosts the immune system too.

Stay away from Sugar (fresh fruit is ok), no fruit juice or dried fruit either. Watch the white flour foods, try to eliminate them. Try to eat salads and veggies and chicken mostly if you can. Try to stay away from metalic containers and aluminum cans, due to metalic smell you mentioned. Fish has a lot of metal contamination, especially shell fish, so unless its from an organic market you should not eat it.

The mentrual shedding is a great detoxifier for the body. Its a way of cleansing all the bad stuff from inside a woman. So if there was metal or bad bacterias, you very well could smell it.

I am a woman and as I have done many cleanses( parasite cleanse, kidney cleanse, colon cleanse, liver etc..) my vaginal fluid does not smell anymore. It was very surprising.

I do not think it is STD related at all.

More people will post their ideas. Do not worry, I think you are safe.

good luck!

I had similar symptoms years ago and my boyfriend was the one that gave it to me. I was treated for it once but since he wasn't treated he gave it back to me. After we broke up I did not go back to the doctor because of finances but it finally went away on it's own after 6 months or so. I did not date anyone during that time because of the symptoms which were bad. If the smell does not go away after your period and is really strong you may want to get it checked out.

This may not be what you have but you can read more about what I had here.
http://www.cdc.gov/std/BV/STDFact-Bacterial-Vaginosis.htm


Hopefully yours is not an STD, but mine was. Good Luck!