I was stung by a 2" P.transvaalicus a few years ago. Initially there was intense throbbing localized pain with some mild swelling. Over a span of an hour or less the pain traveled to the crook of my arm and eventually arrived in the pit of my arm. (Nymphnodes) This throbbing pain continued for several hours. By the next day only the tip of my finger was sensitive to touch but more a tingly numbness rather than pain. That lasted about a week. I shared this experience with the old Scorpion-Enthusiasts ML subscribers immediately afterwards.
The incident occured during a transference mishap.