hi Leah sorry to hear about the m/s. I had morning sickness up until a few weeks ago and it got worse around 12 weeks too. one thing that was comforting is that dr said that it meant that hormone levels were just really high and that it was a good sign that the baby was healthy.. which made me feel a bit better.
the things that helped me were to eat regularly to make sure that your sugar levels dont get too low, eating a bit later at night seemed to help me feel less sick in the morning for some reason. Also ginger travel sickness lollies ( sound yummy dont they.. not) they were in a green packet at woolworths in the vitamin section. and i did also notice when i changed the pregnancy vitamins i was taking to 'fabfol' that helped too
( when told OB he said alot of other women had reported less m/s after taking it too??), and taking the vitamins at night rather than in the morning made a difference. Hope this helps and m/s doesnt get you too down, will hopefully ease up soon