Nausea and sickness suddenly gone!- HELP!

Ok I was getting insanely bad nausea and morning sickness for weeks (I’m 10 weeks today). I would wake up and would immediately feel terrible and would struggle to eat cereal knowing I would throw back up an hour or 2 later. Last time I was sick was Wednesday night when I was in the middle of eating, baring in mind I felt terribly ill that day and the night before but after I ate I felt better (if I eat a big meal I feel absolutely fine) but yesterday morning I woke up fine and this morning I woke up fine also. I wasn’t sick yesterday (although I ate a big meal before I started work) and now I’ve just ate cereal and I feel alright. Only thing I got now is diarrhoea. I’ve got no pain or blood (but I did have a bit of blood in my sick Wednesday night but not a lot) but other than that, I’ve got nothing. Should I be worried?