susz
I had lobular cancer and a mastectomy 10 years ago, the cancer wasn't picked up on a mammogram so please don't just rely on them, any changes please just go to your GP.
My breast cancer was lobular too. Initially, the GP dismissed me because she couldn't feel a lump, but I definitely felt a strange sensation and a sort of thickening of breast tissue.
My cancer was picked up by a mammogram six months after dismissal by the GP, but had to be confirmed by ultrasound. It was only when I had an MRI scan that a second cancer was identified in the same breast.
My message to all ladies would be that you know your breasts best. If you're concerned about something which just doesn't seem right (especially if you're post-menopause), keep pushing to be scanned.