Cancer in the contralateral breast after radiotherapy

I read that Radiation treatment for the initial cancer can result in moderately high doses to the contralateral breast, possibly contributing to a heightened risk.

Now I can't help but wonder if the radiation I received the first time contributed to my getting another primary tumor in my other breast 4 years later.

Also, I am having much more severe radiation burns this time with open sores and deep purple burns.

My question for anyone who has had radiation for both breasts is, Did you have much more severe burns the second time around?

Just curious if this has happened to anyone else.