3rd pregnancy and never felt so ill!

Jessica
I'm 11 weeks, I have suffered with nausea for at least 9 weeks now. I have no energy and occasionally sick. I was prescribed anti sickness tablets that worked for about 4 weeks. I haven't been able to take folic acid or prenatal vitamins due to feeling so sick and thought of drinking makes me ill let alone taking tablets. I feel awful as I know baby needs it. 
I really hope I start to feel better soon.! I had morning sickness with my 2 other pregnancies (both girls) but I have never felt as bad as what i have the last 9 or so weeks! Anyone else in the same boat?