Hi @Alsopt. Of course you're terrified. I have multiple cysts in my "well behaved" side. Biopsy has never been suggested to me. Nor have they changed, from what I understand.
As to what's happening on your mastectomy side, I'd probably lean towards biopsy, if only to reassure yourself now, if nothing else. Unfortunately, local recurrence can happen, most likely in or near the skinof the original tumour, so probably best to be sure that it's nothing. Would you really be happy waiting 3 months??? Unless it totally disappeared in that time. Can you actually see or feel it?
I do remember your site name, you were diagnosed just a couple of months after me. Sorry to hear you've had to stop work due to neuropathy.
Take care
