Jo,
Morning sickness or not is hereditary. My mom said when she preggie with me, she has it, when preggie with my bro, no MS at all. When I was preggie with my gals, I dont have it. What is have is bloatness, lack of appetite. For #1, I vomitted like 3x throughout pregnancy, and its due to indigestion. For #2, abit more cos I suffered from flu quite alot and must vomit once whenever I kenna flu.