nausea - help

Gull • Living in Sydney, Australia. TTC since June 2015 and now over a year later I`m finally pregnant and due June 2017
I'm feeling sick 24/7 and only feel slightly better when I'm eating. So I'm often eating. Not much throwing up mostly terrible nausea. Does anyone have any tips to help this, it is so hard to function at work when I constantly feeling like I'm going to throw up.