Why is the symptoms list so broad?
Symptoms are affected by body type, duration and regularity of exposure, and frequency (hertz). Each frequency can have a very different effect on the human body and different body types are affected differently by different frequencies. This makes electrical pollution as a causal agent difficult to identify, especially if you do not know about radio wave sickness. One article in the Journal of Cellular Biochemistry notes that the stress response is activated in cells exposed to even low levels of electromagnetic radiation both by directly affecting DNA, as well as by activating membrane receptors. They note that cells respond to amplitude and frequency differently. Changes of amplitude in either direction also stimulate the stress response. Where can you go for documentation/resources? There are many useful resources. The list that follows of necessity leaves out many (a readily printable list is available in the Further Info section). If possible, go through the list in order. The Bi