Pregnant and feeling miserable all day!!!

I am very happy to be pregnant. However all day sickness is really kicking my butt. Were not sure how far along I am yet ( appointment is Nov 3rd) but I really haven't been able to get anything done. I work 12 hr shifts and I feel sick all day. I'm hungry but the smell of food makes me sick. I throw up as soon as I wake up, I can only keep water down half the time. I'm so exhausted when I get home that I can't bring myself to eat because if I do. I'll just be super sick all morning and all night. I get up at 4 am and then my day ends at work at 7 pm so I get home at about 7:45 pm. I seriously am going nuts. I hate being sick and I hate throwing up. :( nothing I've tried has helped.