hi doc, i ve been battling a red throat with some changes for a couple of months now, some discomfort on swalloving saliva , the tonsils and back of throat showing red all this time. had endoscopy because i have a hiatus hernia but no changes to esophagus , no esophagitis , just the throat is a problem which now gives me a new worry; can a throat get like this by acid reflux without affecting the esophagus OR is this an hpv (have a partner now whom i suspect of this) related developing throat cancer?... been reading a lot online now, somehow the picture fits ... i do get very anxious: i am a 51 year old caucasian. thank you