Dear Guest 40772-
Migraines are a direct possible side effect of taking birth control pills. Almost all of the accompanying inserts indicate migraine headahces as a possible result-mostly of the changes to hormones and blood flow. You should dis-continue Yasmin and any birth contol that is hormone changing and see an OBGYN as soon as possible. Don't try to convince yourself any longer that it is not due to yasmin-its outlines in possible and serious side effect risks.
There are different means for coming off and I think it all depends upon how strongly your body is respoding to the hormones and ingredients. you should expect if you discontinue mid-cycle that you will likely experience cramps and either break-through bleeding for an early period. Both, natural responses to changing what a hormone/bcp does which is to prohibit your natural period. You can just stop and if you are experiencing migraines, I would suggest doing so as promtly as possible and seeing your OBGYN right away.
Don't worry so much about side effects as much as you should be seeing immediately results and relief form dis-continuing the Yasmin and the migraines you are experiencing!
Jasmine