3 1/2 weeks ago I was diagnosed with ILC. A PET scan is scheduled to be done this week. I did come across a study at MD Anderson that suggested ILC (as opposed to Ductal carcinomas) usually do not shrink with preoperative chemo.
I found a lump with self exam - the follow-up mammogram was not conclusive; a sonogram & biopsy were required.
For the same reasons you stated -- an increased probability (with ILC) of being found in the other breast; the complications with later/future reconstruction; and my own genealogy, I too am opting for a double mastectomy. My surgeon was very thorough in instructing me, re my options. But like you, I do not want to imagine myself walking through this again any time soon. I feel this is the best option for me. Thanks for sharing. Hope you are doing great!