I got headaches before and after switching and many other times too. I got them from not getting enough sleep, when I was manic, when I was depressed, when I was happy, excited about something.... theres no limit of what makes me have headaches.. even some foods with caffeine give me headaches.

when I talked with my treatment providers they explained to me in general a headache is stress or medically related. stress and medically related as in any one DID or not can get headaches when they are under stress, anxious, nervous, depressed, happy, sad, just about any emotion can create a headache. even completely normal people have headaches, some when they dont get enough sleep, are not eating right, or are just plain excited about something. which is why some people with DID get headaches and others dont, and its not one of the diagnostic criteria nor a sure fire symptom for having DID...

Headaches can even come as a symptom/side effect of many medications...look up any psychotropic medication (antidepressants, anti anxiety, anti psychotics, sleep meds what ever) every medication I have ever been on and are presently on have headaches listed as a side effect...even head ache medication can contribute to some people having headaches.

if you are having headaches the best thing to do is contact your treatment providers they can explain how and why you are having headaches whether or not its because of DID there are ways to discover why a person is having headaches and it is correctable.

my treatment providers discovered through EEG, MRI and other tests that when I got headaches related to switching it was because of a chemical called serotonin was not the right level and my hippocampus wasnt working correctly. I was placed on medication and the headaches from DID switching went away.