I've been suffering with a dull pulling pain behind my left breast for about 5 months and following a GP visit and a check of my breast we agreed it was likely to be hormonal related. I've just turned 48 and possibly perimenopausal. The pain is relentless and makes me feel sick and now and wakes me at night. Today my left shoulder and shoulder blade is painful and I don't know where this has come from. I've not injured myself yet it feels like I have. Then I realise the pain must be linked to the breast pain. And I'm panicking. Any advice would be so welcome right now.