A major nuisance
. The usual sort of migraine
, the one that gives everyone headaches
, is caused when a blood vessel
somewhere in your brain
pinches shut and causes an uncomfortable sort of feedback
migraines are just like that, except the blood vessel is in your retina
. It causes weird, vibrating psychedelic
patterns to take up part of your vision
for several minutes and, sometimes, gives you an annoying headache
to go along with it.
I'm having one right now. It makes it rather difficult to read what I'm typing. Not to mention the headache.