Breast cancer found whilst breast feeding

Last year I found that my milk supply on one side was getting progressively less but just thought it was one of those things. However I then developed a lump on my "good" side that led to a referral to the breast clinic. Here they found that the lump was a benign cyst but routine mammograms revealed that I had widespread early cancer throughtout the other side. This is known as DCIS (ductal carcinoma in situ). As most of the breaset was affected I have had a mastectomy and now have a good prognosis however it has been a terrifying experience and very difficult post op with a 10 month old. The pathology showed that the cancer had not invaded into a lump which is why I didn't know I had it but it had spread throughtout the milk ducts hence the poor milk supply. I am really writing this so that anyone else who has lopsided feeding for no reason can get checked out. It is very unusual to present with breast feeding problems with DCIS according to my surgeon. If I hadn't had the benign cyst on the good side I probably still would not know and the cancer would have presented at a much later stage with a lump once it had invaded the rest of the breast tissue. I am feeling well now and most of the time feel positive about the future.