Second Menapause After Stopping HRT

Hi,

I was diagnosed with invasive lobular breast cancer a few weeks ago. I came straight off HRT (cold turkey). I had planned to come off before the diagnosis anyway 

Was a bit shocked to realise that would send me through the menapause a second time ! Was just starting to enjoy no joint pain or pins and needles etc and now it's back with a vengeance. Have looked into natural remedies for menapause .......soy products, B12, etc etc but it seems from reading online these can prohibit treatment after surgery. 

Any advice greatly received.

Lizzie :)