hi deanna,
my mum had a 5 day, 4 week course of radiotherapy a few months ago after having a lumpectomy for her breast cancer, and it all went well.
she did feel a little tired and weary some days, but it was nothing too bad, and the skin around the area where she was having the treatment got a little dry and sore, but applying aqeous cream to it helped loads.
(if you're going to your appointments by car, you will hopefully get a pass so you dont have to pay car parking charges, like we did when mum was going)
a big hug goes out to you for tomorrow, deanna, you'll be fine, don't worry, they'll really look after you really well x
let us know how it goes?