Morning sickness

So I'm 6 weeks 1 day today and I have been getting morning sickness to the point where I can't go out. My dr gave me anti nausea tablet's because I ended up in hospital last week with dehydration and low blood sugar from not being able to keep anything down but so far the tablets haven't worked. My baby is underdeveloped as it is due to being the surviving twin and I'm so scared my daughter's pregnancy wasn't this hard and I never got morning sickness this bad with her some one plz give me ideas on keeping food down even just natural remedies