Feeling terrible

I'm 11 weeks and 2 days. I've been fighting morning sickness my entire pregnancy. It seemed to subside last week and now it's back in full force, but different. Headaches, severe fatigue, super sour stomach taking away my appetite and back pain (possibly from how much I've been laying down). I'm still worried about the ole scary "m" word but also can't function regularly! Anyone else experience this? What'd you do to get through it?