Hi @Brandrew10, i would have a chat to your GP. It is always ok to ask for another opinion at any time. Trust your instincts.
Alternatively you could say you want that biopsy now and tell the surgeon you don't want to wait another 3 months.
If you in the public system complain about having to wait and the anxiety this waiting is causing you.
I didn't not have ILC so can't advise on the symptoms not i know it can be a bit tricky.
It is hard advocating for yourself. Do you have someone who goes to these appointments with you? If you do i would be also getting them to help you push that surgeon or, talk to the gp about how you don't want to wait 3 months and want that biopsy now. Best wishes to you.