I had a stress test done. The Dr. said I have all the criteria for a blockage but he could not see one. I had a positive d-dimer, and the pressure measured in my right Artery was very high, and it was also not right in my legs. The dr. explained it was like putting his thumb over the end of a water hose and it increasing the pressure. He advised me to lose weight and relax more.... but everything else was ok... my sugar, cholesterol, salt intake. He said he kind of was looking for some of that to be "off" so that he could say that maybe it was some of the problem, but it wasnt. Should i also have my head checked for blockages, could it be there? Should I get a second opinion?