womb cancer

Hi, just wondering if anyone has been in

 this situation,  i am 55 and had my last period 15 months ago, and have started to bleed again, it seems just like a period, and i have been reffered for an appointment under the 2 week rule, however i am petrified i could have cancer, i cant concentrate and cant stop googling.

i know there are other things it could be, but im also diabetic and know this increases the risk, is it likely that i could just be having another period, as it seems like one,  any help appreciated thanks .