Sickness

Samantha
Can anyone help me? 
Everytime I eat something I throw it back up. This baby does not like me eating anything :/ I had a salad the other day, threw it all back up, I just had some chips, threw them all back up. It's not like I'm eating unusual foods at all. 
I'm 11 weeks and 5 days. When does the sickness normally stop or die down??