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Checks, and keep to trails to avoid the kind of precautions doreen has to take. is it t fair to say this has changed your life? >> very fair to say that anything i put into my body, i have to monitor. >> reporter: a call for awareness of an illness understood far too little. rehema ellis, nbc news. up next, the long haul for americas trtruckers in n our series the futurere of the road. one e prawn. verery good. did d i say chicicken wrong? tirered of peoplple not liststg to what yoyou want? it...