Cerebral aneurysm on Minoxidil

I have had a bad headache behind the eye and forehead and a very stiff neck
for 5 weeks now and the Dr suspects a brain aneurysm (I have a CAT scan
Wednesday). The headache is constant and it wakes me up early in the mornings.

I have been using topical Minoxidil since February 2015, is this a known
side effect, anyone else had similar from Minoxidil?

I was taking 1.25mg of Fin a day from Feb 2015 to June 16th 2015 but stopped because
I was feeling low and lethargic, low libido. After stopping I soon got back to normal.