Wait a minute, if these symptoms date from the end of the pregnancy, when prolactin is being inhibited by progesterone, how are they the result of prolactin? Will someone clue me in if I am being thick? Hi Catherine Maybe I didn't make my Lactnet post clear, My patient did not begain having headaches until about day 3 after her delivery. I beleive this is when the prolactin level is rising.. Extra pumping produced more headaches, more feeding in a day produced more headaches, and the headaches were more intense at night. Her prolactin level was high, as well it should be the first few weeks/months after delivery but I dont' have my clients prolactin level . This to me all pointed to prolectin induced migraines. Then at about 3- 4 months as the prolactin level level off or decreasing her headaches began to lessen and now she has very few. So what do you think, I really don't know but to me it sure looks like Prolactin levels had a lot to do with this clients migraines. Jan Aken mailto [log in to unmask],