Pain in breast

I had a WLI and then followed with Radiotherapy. I have been on Tamoxifen. Since middle of June.
I have recently noticed that the same breast swells and gets hot with shooting pains? I also seem to be more tired Lasts a few days then goes away.
Is this usual? Thanks and A Happy New Year to you all.

hi, i am 4 1/2 years since dx and i still get quite a bit of pain in my boob, when i mentioned it to onc he was not concern and said take painkillers. but for your own peace of mind it is best to check with your BC nurses when they start back. mine is the same that it comes and goes, it maybe ? due to how much that arm is used, although i dont like to take them often i find inbrufen helps.