hun im 2 weeks post op, i have had pain in my arm pits for the past week. i think it is very normal, ut if you are unsure call your nurse.
i have a dull ache in my arm pits and electric shock pains going through my boobs at times, this is when the nurves are mending. also not sure if others have this but when i drink hot/cold drinks my boobs go hot/cold lol very wierd.
all the strange sensations you are feeling are ok, happy healing xx