Hi Rushdene, I am so sorry to hear your worries. You must have a breast care team where you live and the breast care nurses should be able to reassure you or inquire on your behalf. I hope you were allocated a breast care nurse, but any of the nurses will speak to you, I am sure. Letrozole is used to halt spreading, I understand. I am a breast cancer patient myself. I hope this helps! 

I would ring the consultants secretary and ask when surgery is going to happen, the secretary's have been great pre my recent gynaecology surgery, they rang me back asap and contacted the surgeon for me then replied for her. I have a clotting condition and had worries about the drugs l had been given by my GP and should l take them pre surgery. They replied with a date for my operation. My oncology surgeon has been great. 
l hope you have your surgery soon.

take care 

Susie 

Hi, sorry to hear about your situation and the loss of your husband last year.    I had similar diagnosed in January (invasive grade 1), then another area (first missed) which was zero grade DCIS.  I was so worried about the weeks of waiting so totally understand how you're feeling.
I'm almost 7 weeks post surgery after a mastectomy.  With the two areas it was felt the right route to take and lumpectomy was ruled out when my second area was found.  I had to have a load of new biopsies done, then had all my images re-assessed and it felt like delay after delay.  We got there in the end and so will you.  
My surgeon also told me that the lead time from diagnosis to surgery and treatment would be no longer than 12 weeks and that there was no harm in waiting a week or so.  It sounds as if you are about there so I would chase the consultants secretary and the appointment clerks to get your surgery date in the diary. You will probably find you are very close.

Wishing you all the best with everything.