Body tricking me, too early to test.... But what?!

Taylor
Okay. So a few minutes ago I was cleaning my kitchen.  And I got this overwhelming nauseous feeling. So bad that I had to go sit in front of the toilet. I didn't puke. And this happened about 3 days ago. But other than that, it's NEVER happened to me. Even when I was pregnant with DD. I would feel a little nausea every once in a while but not sitting in front of the toilet nausea.  Here's the thing. I'm only 7dpo..... That's WAY too soon to be having such strong "morning sickness" if that's what it is. Right? And I tested yesterday with fmu, and it was a BLATANT BFN.... What in the world?