"i&#039;m 29 &amp; i was originally on gildess &amp; i loved it! suddenly my pharmacy gave me this new pill. bleh. they told me it was exactly the same but something wasn&#039;t right. for some reason microgestin gave me insane headaches. at first i was like, ok. 1 or 2 headaches every other week is fine. but then it went to 3x a week, then 4x a week! suddenly i had a throbbing headache that was literally with me for 2 weeks! i thought maybe at first it was my  ventriculoperitoneal (vp) brain shunt malfunctioning but i got it checked &amp; it was fine! then i did some research &amp; found that this bc can cause crazy amounts of headaches. i am so so done with this bc. it&#039;s now been a 1.5 weeks since i&#039;ve been off it &amp; guess what, no headache! getting an iud on my next cycle."