yep mine went away at about 15 or 16 weeks, cant remember (blocking out the trauma haha) but it literally did go over night....one day i felt like dying and was spewing up everything...the next morning i felt fine! too fine i thought something was wrong and rung the midwife and my mum! LOL
had a few moments for about a week after that where i got abit queasy, and bin smells etc still make me feel alot sicker than before i was pg, but seriously if it disappears overnight like mine did dont stress, be greatful!