Susant this doesn't have to do with BCG, but it is a proven fact that some people going for chemo just get sick, dizzy, or panic attacks just seeing people sitting there getting chemo and the enviroment. They are scared to start with and the mind can to do funny things when you feel stress. Just a thought. And also it is a good idea to eat before you are taking tests where you can eat plus it helps if you are taking meds so you don't have an empty stomach. Joe