7 weeks symptoms suddenly gone?

Emma • 19 mo twin boys 💙💙 7mo baby boy🤰🏼 baby #4 is a GIRL 🎀 on the way!
I'm 7 weeks with twins and have had sore boobs, ms and been super tired. But I have noticed I have woken up today with nothing! 
Is this normal! Or should I be worried? 
I saw both of the babies heartbeats only days ago... and now I'm panicking! These are my rainbow babies after a miscarriage in February!
Please help!