Im 23, and have high blood pressure (160/110 ish). I dont smoke (anymore, quit 1 year ago), dont drink more than 8 pints a week, dont do drugs, low cholestrol, not overweight (im 6 3 and about 90kg) and lead an fairly active life. I have seen 2 Consultant Cardiologists now, and after practically every test possible they have both concluded they dont know why my BP is up. While i don t doubt their proffessional opinion, Im sure there is something causing it. Would an allergy (eg food etc) or something unknown to me cause it? A friend mentioned Diabetes , would this be worth following up? Can anyone think of anything, or point me in a direction of help? Oh by the way, I m not stressed, and dont eat large quantities of salt, I eat very balanced diet , including lots of green stuff! Sorry, all my tests came back ok/clear. Kidneys fine.