Hi Sandra,
My situation sounds very similar to yours, found early and small, I too count myself as being very lucky. I did however chose to go ahead and have the radiotherapy, as Lyn said in an earlier post, it is an insurance policy, anything that helps slow down or stop the cancer coming back can only be a good thing, right? It also depends on how you are coping personally, some people are ok with no further treatment and some people chose to go and have every thing offered to them. My oncologist was very helpful in my decision making process too, he showed me all the pros and cons. He also did recommend the radiotherapy as a minimum for me. My treatment was for 6 weeks and I drove myself each day to and from the hospital. I found it more tiring to do all the driving than the actual treatment, the treatment is painless and very quick. I am now on Tamoxifen for 5 years, with no issues so far.
If you do decide to go ahead with the radiotherapy, ask about Mepetil film, I was offered it here in Brisbane at the Wesley Hospital and it certainly helped with the redness and soreness of the skin. It is like sticky cling wrap that is applied to the treatment area and has to stay on for the duration of the treatment, so showering is a little tricky, but manageable. I used to wash my hair over the bath with a 'pet shower'.
Good luck with your decision making, it is always a tricky one as everyone copes and processes things differently.
Take care
Jackie