Is it normal to still have this shooting pain 9 years after a breast reduction?
Shooting pains in the breast 9 years after surgery is decidedly abnormal. You did not say whether you have had these continually since surgery or not. Whether these pains are continual or new would make a significant difference in the possible diagnoses. There are also multiple other things that need to be considered. The most likely benign cause would be a neuroma from the breast resection that is trapped and then pulled by scar. You need to see a plastic surgeon for a complete evaluation. More recent your symptoms, the sooner you need to do this.