[sarah]

well happy it was solved but when I read your symptoms, they were the same symptoms a friend had when she was having a heart attack so I expected you to say that was the cause. She was taken immediately to the hospital and was ok. She's also an HER2 person. Her pain was back, shoulder and jaw. jaw is often the clue. My heart attack (caused by radiation) was severe chest pain only. So symptoms are tricky.
My husband has Ankylosing Spondilitis (fuses the spine) and it was misdiagnosed for years. They kept saying he'd sprained his back! until he was so paralyzed he couldn't get out of bed without help.
A really good GP is a good safety net because they see it all and are not so focused on one thing. And I like a female GP! Males seem to think we're all hypochondriacs!
Another lesson that we have to take charge of our own health.