morning sickness

Hi, this is my first pregnancy and in at 8 weeks now. I know morning sickness is normal and common but at which point should I start worry because I have been running in and out of the toilet the whole day. I can eat but after a few hours I will throw up again. I'm just worried because I have been going on mc for a couple of days since I found out I was pregnant and I dont feel up to it to go to work in this nauseating and vomiting condition.