I had TERRIBLE ALL day sickness for first 12 weeks and I tried eveything too - I finally went to the chemist and they gave me Blackmores Morning Sickness tabs and they work a treat!! I would recomend trying them.
I am now 13w and 2 days and I only get MS evey second morning now - alltho I vomit now and i didnt b4 but after the first 20 mins ut of bed and a quick vomit I am pretty good all day. There is still smells and foods that I cant stand and make me feel sick but all in all alot better.
I recomend oranges, savoys and hot chips and sauce!
Hope something helps!
Kate