Hi, I had my Pneumocolon CT scan yesterday as I have been having constant diahorrea... Last night it dawned on me that I have had 4 CT scans over the last few years 1) Dental 2) Mammogram 3)Nasal CT and yesterday Pneumocolon it's got me thinking that I have been exposed to a lot of radiation I have said to my husband that I'm not having any more unless it's life saving. I'm worried now that I'm vunerable to cancer maybe I'm not thinking rationally & know that we are exposed to radiation every day including on planes & it is low dose radiation for CT scans but surely it amounts up ...Has anybody had more than one?