NHL survivor - has anyone had a double masectomy because of mantel radiation to prevent breast cance

Hi,

I'm a stage 2b NHL survivor.  I was diagnosed in 2007 and had 8 rounds of R-Chop and 35 treatments of mantel radiation.  I know the radiation increases our risk of breast cancer by a lot and I am already seeing the changes and starting to have little problems.  Has anyone had a preventative double masectomy to reduce your odds of breast cancer?  I'm looking for guidance because I'm stronly considering one but I'm scared.

Thanks,

Kristie