Why do I have a warm and tickling sensation in my left breast? (photos)

To properly assess your condition would require an in person evaluation. Schedule a follow up visit with your surgeon who, in addition to your oncologist, can guide and help you with the diagnosis and treatment.

Dear Cassey george,
I understand your concern. However, without a proper assessment, it would be difficult to determine what went wrong. It is best that you visit your plastic surgeon for further assessment or ask for a second opinion. Only after a thorough examination, you can get proper recommendations and advice.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

You may have some scar tissue around a small sensory nerve that is giving you with weird sensation. Try massaging the area to overstimulate this nerve.