migraines on and off since puberty

Hi Just need a bit of reaasurance I suppose, I have suffered migraines on and off since puberty though more off than on, but since starting the menopause, (8 yrs ago) they got worse.I am now 54 (Last week) and the last couple of times I have had a migraine they have been really nasty,with visuals nausea, and head pain, last week got one on fri eve, and one 8 hrs later and then one on the sat early afternoon, then again one on the following tuesday, and another one today, but during the week have also been spotting as though is the end of a period. Has anyone else had this, and is it hormonal or is this a cause to worry. Thanks