First time here so hope I'm doing this right, is it normal to have affected breast warmer than the other 3 months after completing radiation as well as pain increasing for the last month? Early stage ...
Welcome @Kaye66, you have done this just fine ☺ I'm 4&1/2 years out from completion of radiotherapy and my treated breast is still warmer than the other at times. At 3 months my breast was definitely warmer. Any signs of redness or infection? That would be more likely to cause a sudden onset of pain but if you're concerned I would suggest talking to a breast care nurse or your GP to start with Stay well