Just wondering when I should start worrying.

I've been pretty sick since about week 6 and throwing up daily. I've been struggling to eat and drink. Yesterday I was throwing up despite having Maxolon. I only throw up 4 -5 times a day, but so far I've lost more than 4 kilos.

Mum thinks I should call my Ob and talk to him about it, but I'm more of the opinion that as long as I'm getting something down I shouldn't worry to much.

What do you think?