BW, just did a little bit of reading as I was interested to know as well about compacting.
So, it just seems they are a day behind but they are still progressing so hopefully will be ok tomorrow.:
By Day 4, the cells have divided rapidly but the embryo has not yet increased in size. It is now compacting (you cant distinguish the cells) and is called a morula.
I'm happy you're feeling better and are now well and truly over the worst of things. :)
BG, I had the same problem with Elevit when I started. It took about 2 weeks until I started to feel normal again!
