Brownie,
I hv been having bad MS since Week 6, only got better recently. I learnt from Singapoh and oso read from books that before u get up from bed every morning, eat one or two pcs of crackers and cont lying down for another 20 mins before u slowly get up. This mtd helped me initially but when the really bad MS kicks in, it didn't help me anymore.
Basically, like what Skies said, my diet consists of soup and porridge only, despite that, I only could eat 1/4 of what I usu eat during my normal meals. I cldnt drink plain water oso, only can take flavoured water like Ribena. Do not drink Ribena on an empty stomach though, cos I found myself vomitting badly if I do that. Avoid oily and spicy food as well as food that will produce alot of air in our body, esp food that contains coconut milk, like curry and laksa. It created havoc for me.
I realised that usu my vomitting is caused by air in my stomach and I cldnt get it out thru burping. Therefore, eat slowly to avoid swallowing alot of air.
Recently, I realised that cold drinks help to ease my nauseousness too, however, I will make sure I leave the cold drink from the fridge at room temp for a while first before drinking. I oso make myself honey drink wif lemon, really opens my appetite a little too.
Finally, I oso eat alot of fruit and veges as I cldnt eat meat now. Also, during this period of time, I avoided hawker centres etc, places where there's alot of smoke and smell. Eating at home is the best, although whenever my mum cooks, I will shut myself in my room cos the cooking smell makes me puke. I can't take any smell, didn't use medicated oil as the smell oso makes me uncomfortable. Basically, I lie down everyday as it will help ease the MS.
Hope this helps