Now I think the word 'widgy' is especially unique to me as I think I made it up. My Google search has yielded no evidence that suggests someone else invented it before me. It describes the extreme discomfort and sense of restlessness caused by a seemingly minor irritant.
Yesterday I was driving in sandals that are probably on their last legs. The leather underneath the sole of my foot was coming away from the shoe's cork bed and rubbed against my heel when it rested on the accelerator pedal. Aaaargh! My whole nervous system seemed to be on edge even though just a small part of my body was being aggravated. Now that is the feeling that I describe as widgy!