@gldilli

Where are they leaving you with this situation? It is upsetting that they are saying that it is not from the surgery or radiation. Then who do you see and what do you do? Are they trying to absolve themselves but not help you?
Surgery can cause muscle or nerve damage and radiation can cause fibrosis which can lead to breast or armpit lymphedemea.....

My lumpectomy was Nov. 2022. Pain since surgery in center of armpit...Dull pain which happens with sports bras pressing or bras pressing. Also, hurts if bra hits 2PM area where turmor was. Told by radiologist in August that I have breast lymphedemea.
Slow journey to get help as so far have had evaluation by Pt lymphedemea expert as am awaiting seeing her again mid Oct. Am seeing NP at breast surgeon's office next week as I want to know what this is too.