Dear Husband M
I wonder if you have considered calling our helpline 0808 800 6000? We have trained professionals who can listen and support you.
It sounds as though you and your wife have had a tough couple of years with her diagnoses and treatment. The consequences and side effects of a cancer diagnoses and treatments, impact on everyone within a family unit, not least of course for the person diagnosed. Below are links to 2 publications on our website. The first is to a factsheet about Tamoxifen which includes information about possible side effects and the second link is the factsheet about menopausal symptoms which can sometimes be one of the side effects of Tamoxifen.
I do urge you to call our helpline as speaking to someone can often lessen the sense of isolation that many people in your situation feel.