Pregnancy bloat is gone and I'm only 6w, is something wrong?

jolibebe

I woke up this morning, and my bloat is completely gone.  My stomach looks flat just like before I was pregnant.  Also, all of my symptoms have been decreasing less and less for an entire week now.  My beta numbers are good but my progesterone level dropped a little on my check up on Monday.  I had an u/s but just saw an empty sac.  I was told it might have been just to early to see anything yet.  My doctor keeps dismissing that my symptoms are vanishing.  I go back next Tuesday for another US.  I'm scared that I have a blighted ovum.  Has anyone's bloat ever gone away this early?  I have no cramping or bleeding but I'm still worried.