Why have all my symptoms disappeared???

Joanna β€’ Expecting my 2nd baby Feb 2018 πŸ‘ΆπŸ½πŸ˜
Im 7weeks 5 days and all of my pregnancy symptoms seem to have gone over the last few days πŸ˜• Has this happened to anybody else? I'm booked in for a scan on Monday, hopefully everything is ok 😁