ALL DAY Sickness

I'm 8 weeks, and for the past 2 weeks my morning sickness has been getting steadily worse. It started as morning nausea until i ate, then it went away completely. But since then it doesn't seem to have a pattern, it just starts about half an hour after i wake up and continues in waves throughout the whole day. The only time i feel a bit more human is after my evening meal, for a couple of hours maximum. I just can't get anything done as i feel so awful constantly. I feel like i'm not being myself anymore, as the only time i feel OK is lying down in bed. I also get weird shakey/achey attacks sometimes when i'm standing up. This is my first baby so i don't know how normal this all is, i just know i'm struggling! Is anyone else with me?