Just found your post as i am having issues at the moment to that are similar to yours. Did you go and see your nurse? just wondered what they said it was.
I was diagnosed in Feb 2016 and had my 1st op in March for lumpectomy and then further op in the April for lymph nodes removed and to widen the margins from the first op as they did not take enough tissue, then chemo and radiotherapy which all finished just before Christmas 2016, now on Tamoxifen. I have had the usual issues with numbness and aches and pains around the scar tissue but nothing major. Last month I started getting red and blotchy patches on the skin of my breast and now, for the last week it has been very tender to the touch, so much that i cant lie on my left side, and sharp pains and itchy and also swelling as the day goes on, phoned my BC nurse about the redness and they have brought my appointment forward, wasnt until August but now going on the 9th February. Just a bit worried that something may not be right.
Hope you got sorted.