I am wrong - the breasts didn't start to be a problem for at least a month here.
It is possible that it is psychosomatic Bill - feeling warm and hard is hardly classic symptoms! Tingling and pain, more like - especially if knocked. And I think you would be a test case at the next international urology conference if you had problems after only 3 days!
The official line is that breast problems only occur in men that are on bicalutimide for more than 6 months. NICE guidelines say if you are expected to be on bicalutimide for at least 6 months, you are entitled to 8Gy of RT I think, but it only works if given at the very start of you being on the HT. Tamoxifen can be prescribed later if you need it so perhaps the doc is thinking 'wait and see'?