Are you on any medication for it? In Canada we have a great pill, Diclectin. I'm on 4 Diclectin a day and it seems to be FINALLY under control, as of about a week and a half ago. I thought it was gone so I cut down to 2 pills a day but I was wrong so I'm back up to the 4.
I'm still retching daily, barfing about once a week. Fun it is not!