I have a sharp pain I my right breast that radiates from just under the armpit to halfway into my breast, outer right area. Right now it s like a shock going into my breast. However, it comes in short bursts and isn t continuous. I do my workouts, and nothing happens. It isn t to the point of doubling me over or anything, but I am concerned about it.
Cannot say in your particular case. In general the location, character, and context define pain. Electrical, going in the pathway of a nerve would imply a nerve cause of pain. Nerves go outward in a linear pathway like from the armpit outward. This is not a common location for nerves to be injured, but it is possible with trauma to the underarm or shoulder such as the arm being yanked outward. Tumor, shingles, Lyme, localized collapsed vertebra and/or disk disease, even syphilis. Shingles and trauma I see every few months the entire rest of the list I've never actually seen. Localized collapsed vertebra and shingles need specific treatment (so do the rest).