Kyle Richards’ doctor refused to give her a tummy tuck. The 54-year-old reality star has always been keen on keeping fit and decided she wanted to have cosmetic work done on her stomach after having a breast reduction but her doctor wouldn’t go through with the idea and she eventually just stuck to traditional exercise. She told this week’s edition of UsWeekly: ” ‘ve always worked out, but I was doing the same thing on repeat – I’d go on hikes and spin. I started including weights and running [and] hot yoga. “I wanted to get a tummy tuck when I had my breast reduction, and the doctor wouldn’t …