Well my mum didn't get any morning sickness but I did, so I'm guessing everyone is different

No symptoms for me at 6 weeks. Started to get sick at 7

I didn't seem to have any symptoms at 6 weeks not exactly sure when they first came on but it was a few weeks later I'm now 20 weeks and have just over past couple weeks felt like myself again with an appetite

Am about 6 weeks.

Depends how far along you are