Can Metformin cause migraine headaches?

I am experiencing the same issue. 

It is not low sugar.  I test my blood sugar everytime I get a migraine (which is almost every other day).  I have had migraines all my my life, however not at this frequency. The only change in my daily life is I started to take metformin.  I am going to stop taking the metformin.  I would rather have issues with my blood sugar then a migraine every other day.

Tommy,

It may not be low blood glucose levels for you, but that is a trigger for some people.

Teri

I also take metformin and have a headache everyday.  The severity of the headache differs from day to day, but there is some type of headache daily...Today is a migraine day.  And it's all I can do to hang, I work in a office setting with cubicles and LOTS OF LIGHTS....Plus my computer screen...So getting through the day is a challenge, by the time I get home it's all I can do to get to the bed...Does anyone have suggestions about how to eliminate the headache...My doctor says it isn't good to mix medicine with the metformin, and since I'm on the highest dose (2000mg/daily) you can take I dont want to chance it...Plus I HATE taking pills....

Been taken metformin for about 3 months, the headaches started the 1st week and haven't stopped , everyday I have some kind of pain in my head,  and feel some what  dizzy ( and it isn't low blood sugar). matter of fact my last A1C show no change since I been taking metformin. So the only difference since I have been taking the drug is headaches, upset stomach and  Gas . also have less energy ( sleeping a lot more) and have no appetite. MY doctor wants me to give it another 3 months , and if no change in my A1C , want me to start taking Actos. which comes with whole other set of side effects I can look forward too. I don't mean to change the topic , but has anyone else asked themselves , what's the point of all this?  trading off one problem for another hoping to gain something in the long term?

I was taking Metformin for 6 months before I got the first cluster headache.  I was liking the Metformin because it was the first medication that acted as an appetite suppressant and I was eating less and losing weight.   When the headaches came I didn't want to relate it to the Metformin but I can't think of any other reason for them.

I occasionally wake up with one during the night and the only treatment for me is to find a position that seems to alleviate it a bit and stay in that position for as long as possible.  At present it takes about 45 minutes for it to go away.  Once it's gone I can usually get back to sleep.  But I've had it occur on the road while driving as well as simply reading a book or doing nothing.  They are wicked when they hit.