Dolor de Cerebro
Yarris, K. E. (2011), The Pain of “Thinking too Much”: Dolor de Cerebro and the Embodiment of Social Hardship among Nicaraguan Women. Ethos, 39: 226–248. doi: 10.1111/j.1548-1352.2011.01186.x
On to something here - if 'thinking too much' can be a cause of pain how about trying to think when the brain is damaged as in dementia. I can distinguish between headache and brain pain and have argued that cognitive (brain) pain is quite different to pain related to muscle tension; raynauds of the brain circulation (my diagnostics) a head trauma etc.