Hi, I started week 5 on Tecfidera today, I have had plenty of side effects, I'm like the textbook. I am determined to get through the first 12 weeks in the hopes that it all settles down after that and everything will be fine and dandy. I took my tablet this morning, following all the rules about protein and fats and mid-meal etc. But then I had incredibly painful stomach cramps and nausea (nothing new although more intense than normal) but this time I actually threw up all of it and now my stomach is empty about 45 minutes after taking it...does that mean I have also thrown up the Tecfidera? Should I take another one? I can't find any information about it. At least I felt a lot better about 15 minutes after throwing up! Any advice gratefully received! :)