Nervous wait, 8 years after breast cancer

Hi everyone

I just wondered if anybody had been in my position. 8 years clear of breast cancer grade 3, had mastectomy, chemo, herceptin and still on tamoxifen. 

Been having an achy hip, sent for x ray it has shown suspicious lucency in 2 places, waiting now for an urgent isotope bone scan and an appointment at the breast clinic. 

I'm worried sick.