Nausea makes me feel worthless, am I exceptionally weak?

This is my first pregnancy and I'm in week 7 (6+3) and for the last week the nausea has been paralysing. I'm basically bed ridden from morning til maybe 8pm, when I can finally get up and kind of have a meal and do some simple chores. I feel gross, I can barely shower or take care of myself. I'm on time off for the holidays but I'm scared about going back to work...

I don't understand how other people work when they feel like this? When I google this all I find is this HG condition but I don't think that applies to me as I'm not throwing up. I feel like it's just regular pregnancy nausea that I simply can't handle? And it makes me feel like the worst person ever. How do other people do it?