I got a positive (very, very faint) at 8dpo. It was using a Answer brand pg test. I had the exact same symptoms as you are having. Except the eating part, nothing sounded good, so I barely ate. I ended up having a early mc, but those are definately pg symptoms. I love twoweekwait.com, it has pg symptoms from women posted by dpo. I am obsessed with it.

Good luck and keep us posted.