Feeling nervous now

8 weeks ago I was diagnosed with  INVASIVE DUCTAL CARCINOMA AND DUCTAL CARCINOMA IN SITU. I saw the breast surgeon within a few days and she sent me to have multitudes of scans, blood tests etc. my diagnosis is complicated by the fact that I had a hip replacement 17 months ago that was complicated by a major post op infection that left me in hospital for three months and having three further surgeries. I am still on antibiotics from this infection and the likelihood of me coming off them in the foreseeable future is zero. I am under the care of infection control at one of my local hospitals for this. Anyway, they had to weigh in on this upcoming surgery in case either area was compromised. The other problem I have is a regurgitation of two of my heart valves so care needs to be taken with anaesthetics, so of course Cardiology also need to be involved. Anyway I went back to the surgeon yesterday ( she's been overseas for six weeks) to chat about all the results and she told me that she can't book me into surgery yet as something new came up on my last heart scan which needs a cardiology clearance. Luckily I already had an appt booked with my cardiologist for this coming Monday. The surgeon has agreed that if he gives clearance I can call her office prior to her getting his letter so things can start rolling. She wouldn't put me on her lists tentatively in case I need further cardiac treatment first. I'm just worried that it's already 8 weeks and I can actually see this lump in my breast now. Do you ladies know if these things spread quickly to the lymph nodes etc? Everyone seems to have had their surgery so fast in comparison to me. I've seen no one and have not been put into contact with oncology or anyone as yet. The surgeon said that will happen post surgery. Im a patient person but my family is starting to freak out that this thing is going to take over my body and that cells are escaping into places they shouldn't withball this waiting. What do you ladies think?