Hi @bunr - sorry to see you here on the forum - but you've come to the best place for honest answers re any question you care to put up!
So you've had your surgery already? Was it a lumpectomy or mastectomy? If only a lumpectomy & with fuller breasts, you may be able to lie face down on the table (like I did tho mine was on the right side) and wth a bit of luck, not have the ribs, heart & lungs affected as much?
I am sure some of our ladies with L/H radiation will jump on soon & give you more specific info - but they may need the info mentioned above ;)
All the best wth your ongoing treatment - hoping it goes well with little side effects.