Breast duct removal

I had breast duct removal and biopsy on 23rd October 2020 due to finding bloody discharge.. 

never been so frightened in my life being told it could be cancerous. I couldn't eat/sleep my worry was at its highest, I went back two weeks later for change of dressing and for results and I thank my lucky stars that  my biopsy was clear.

 

but my right boob is now about 2 cup sizes smaller than my left boob, anyone else had the same thing done and know why my boob has shrunk in size ? It looks a bit weird, but I'm not bothered by it as I'm more thankful that everything came back clear I'm just more intrigued to why it's smaller x

thankuou xx