I have a balance disorder & get vertigo/dizziness & nausea/vomiting when it flares up. When I was in the first trimester morning sickness really aggravated my symptoms & after seeing a few gp's I was told stemetil was ok to take if necessary, it's the only drug that eases my symptoms. Now I'm 28 weeks & my symptoms have flared up again, saw my gp this morning & he said I couldn't take it in the 3rd trimester & also it would be a problem to take it however infrequently if breastfeeding. Bit depressed at this news but not 100% convinced he's right, I know they like to err on the side of caution which I understand but when my symptoms are severe I am incapable of doing anything. I always take the drugs as a last resort & a bit scared at the thought of not being able to take anything now.