It sounds like you could be pregnant - the smells were a huge thing for me. The thing is, if you are experiencing back pain and any type of spotting, please go see a doctor. Bleeding is NOT common during pregnancy, I think this is a misconception a lot of people have.

That stomach flu is nasty... a lot of people I know were knocked out by it for about ten days.

And so if you're pregnant and had that its also important to get prenatal care because you have to stay hydrated at the very least, even if you can't eat.

Good luck.