HsG??

So tomorrow I am scheduling my HsG appointment. I wasn't nervous before about it but now I am. What if my tubes are blocked? What if I can't conceive on my own? What if??? I'm driving myself crazy right now. Has anyone had this procedure done and felt like I do right now?? How did you mentally prepare yourself? Should I be worried about my results? All my other infertility blood work came back normal with the exception of a slightly elevated prolactin level. So slightly that when I googled it I was barely over the normal limit by 1. Someone please try to ease my mind over this.