For about six months after my surgery I was getting thrush in my mouth every three weeks- they tested for everything through blood work and said everything was fine. I still kept getting it and then they decided it was my body's reaction to surgery. And then it just went away. I think perhaps, although odd and annoying, that it's a coping mechanism for the body.
I only told my fiancé, my mom, and my brother. When people ask me how I'm losing weight I tell then with a lot of hard work- people don't need to know everything and chances are they will judge you- if they are critical of the surgery then they don't need to know about it- hence why my father and friends don't know