my morning sickness started at 4 weeks and only really was horrible if i didnt eat. otherwise, if i ate, it was there but tolerable. when i hit 10 weeks and 2 days, it disappeared out of the blue. completely no morning sickness that day. although i was enjoying it i got scared out of my mind that something was wrong and nearly wished it wuld return. weeelll it returned right away the next day. in fact, it was full-fledged ABSOLUTELY HORRIBLE. the worst i could have ever endured and not even eating or anti-nausea/emetics would help! it lasted intensely until the middle of week 12, and thats when it went away for good but i still get bouts of nausea every now and then. i had a bout of it out of the blue just a few mins ago actually hah.