help, nervous, questions, had ultrasound

I had similar symptoms during my post-menopausal period (between 54 and 56 years of age) accompanied by a sudden very unhealthy lifestyle and a foolish 6-year interval from my annual mammo and u/s screenings...  So, when last June (2018), after having made all the healthy resolutions for my body and started dieting, quitting alcohol and getting regular exercise I went for a mammo and u/s, the images revealed a small but very suspicious mass deep in my right breast at 7.00 o'clock position attached to my pectoral muscle...  One of the bug-bite-like spots I had noticed couple of years before was located at 7.00 o'clock...  Long story short, I underwent every possible breast imaging test and a lumpectomy operation and, thankfully, the histology came back benign (adenosis, non-atypical ductal epithelial hyperplasia, etc) which, however, as my breast surgeon explained, would have progressed to some sort of carcinoma if it had gone undetected and/or been left untreated for a little bit longer.  My surgeon never associated the aforementioned mass with the incidents of breast skin rashes I experienced in the past 2 years as long as there was no nipple discharge involved (there wasn't one) but, as you know, every case is unique when it comes to breast health issues.  I believe you'll be just fine if you follow your doctors' advice and recommendations and never skip your regular image screenings

PS btw, from what I read here, IBC doesn't normally show in u/s and it has the tendency to progress rapidly, not the kind of a rash coming and then fading, but I'm not a doctor myself...