Morning Sickness?

starting from 6 weeks i had nausea some days quite bad but was never actually sick.. at 10 weeks it started to lessen although never went away... im now 14w2d and this week its worse and now im actually being sick with it too.. i can feel sick like iv not ate for days or eat a peice of toast and feel like iv ate 9 burgers? im not being sick all the time maybe once or twice a day but is it normal for this to happen later on? has it happemed to anyone else?