Sorry, I didn't make the intent clear. I do want to do more experiments on myself, and I need to work on figuring out a non-annoying way to collect data so I can do that. But I'm also really curious how common this sort of thing is in other people. So the library research is for testing your alternate hypothesis, and my hypothesis that some people are strongly influenced by food but mistake it for a chronic problem.
You can also try using Eureqa; it's good for finding potential correlations and relationships. It also tries to suggest possible experiments.
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