Damn... And I forgot my tinfoil hat at home again... HEhe.
Seriously though, I know EXACTLY what you mean. With me, there's a couple of differences (albeit minor). For me, I get the odd tingling sensation between my forehead and LEFT temple. I don't generally get depressed, so probably not going through it as "bad" as you are, but there's the occasional sensation of something sitting on my forehead. But yeah, definitely feels like as if there's just something out of place in that region of the brain.
Just out of curiosity, but are you right handed or left handed? It might explain the difference in the side of the head...