Migraines for days

For the past several months I’ve been dealing with horrible migraines. They get worse around the time I’m supposed to start my cycle. Now if only my ob didn’t retire I would have been to the office to get his opinion. I just haven’t found another ob I trust or that takes my insurance but I really need to know if this has something to do with endometriosis recently found out my younger sister has this so it’s possible I have it bc I’m having the same problems.