Confusing Body Signals...

I'm 12dpo and i don't know what else to do. For the past week (since 5dpo) I've gotten spells of nausea, light-headedness, hunger, motion sickness, and emotional outburst. I took two pregnancy test (pt #1:7dpo and pt#2:11dpo) and got bfn's.

I know what you're gonna say, "sounds like pms," but I don't have these partucular pms symptoms. My breasts aren't sore, I'm not bloated, I'm not irritable, and I'm not in my normal 'cleaning fit.'

I need some helpful suggestions.