AF late..and only bfn

AF is late, (never late) no signs of her showing. I’m 4 days late now. And all I keep getting are negative tests. The other day I ate lunch and got sick right after eating and today I got sick after eating a pop tart and then later after I had lunch. I feel more tired than usual. And yesterday I was looking up at a shelf and got dizzy. I already have mom brain(so forgot things here and there), but now it seems like I’m forgetting everything. This is driving me insane. If AF is gonna show I wish she would already so I can stop driving myself crazy.