I just want to sleep

Don't get me wrong, I've been waiting for sweet pea for long and I am nothing but thankful for having the opportunity of having him...but no one ever told me it would be this hard! Everyone paints pregnancy as a magical time and for the past 6 weeks I haven't been able to go to work or to get a simple good night's sleep. Everything I eat or drink I throw it up and I'm constantly worried I'm not giving my baby what she/he needs, I keep losing weight, my skin is dry and itchy... We saw two doctors already and I even agreed to take ondasetron but medicine does not work on me, my body keeps rejecting everything and I'm so tired I dont know what else to do :( In the meantime my poor husband in the middle of all this mess, I don't want him to think I'm just lazy...I'm just so tired!