OK thanks.fwiffo wrote:I've never heard of one.
Well, this is a physical reaction I am feeling with the mice, not psycho-somatic.But you're not having a reaction to your mouse. If you were, then you'd be having much stronger reactions to everyday objects like lamps, the sun, radioactive elements in soil/rocks, the air, raccoons, etc. which emit more of pretty much everything that you claim you might be reacting to...
I plug in my ball mouse and I am fine. I plug in a dozen (yes I've tried close to about a dozen optical wired/wireless mice now) and I feel a small pressure in my temples (and it's not pleasant).
I can't of course pinpoint if it's EMF's, high frequency sound, voodoo, or whatnot. All I know is that I can feel it, and that's all that matters.
With some mice, the sensation is stronger than others, but it's always there.
For now, I'll stick with my ball mice (I have a few) until something else comes along.