If migraine suffers have increased sensitivity at all times, then there’s not much point to the headaches themselves.
If not, then the headaches are a terrible early warning system. It takes around 30 minutes for a migraine to progress into the pain stage, during which the sufferer can have sensory hallucinations, lack of alertness and general clarity, and even paralysis.
It’s interesting to consider, isn’t it?
According to studies I’ve read, humans are happiest and most active when they are confronted with difficult problems that are nonetheless within their ability to solve.
Depression, from my own experience of it at least, is a state where you don’t think any of your significant problems are solvable; any action seems pointless.
So in that light we could imagine depression being the flip side of an otherwise useful coin. That a specific set of events can train your brain to believe nothing can usefully be done, and then you’re fubared.
The problem with this theory is that neurological causes have been found that suggest that the cause is neurological in the first instance, and that the feeling of helplessness comes later.
I agree that problems solved do lead to happiness. Problem solving skills are something I have always enjoyed using. I still do crytograms daily. I was the best at doing fault locations at my old job because I love to solve a problem within my ability. I always scored highest at abstract reasoning and spacial relations.
I have also had depression since puberty but it under control with medication. Without medication I would me a very miserable person because my brain does not make enough seratonin. Depression makes you feel trapped and unable to make decisions but with advances in SSRI’s people can now enjoy a normal life even if they have clinical depression.
Many depressed people are very creative in writing and the arts.