I had an idea!!! (hense the name)
Everytime I felt sick and was pretty sure I was gonna throw up, I wrote it down in this notepad... and I have to do it... So I was looking through it and there was 2 or 3 a week and next to each one I wrote stuff like 'OMG Im pretty sure this is it' and each of them I was certain... its made me realise how convinced I get and it never happens