<s>[INST] I usually have very low blood pressure, 98/70 but today I began to feel faint and my heart was racing. I checked my blood pressure and itwas 199/165! I usually go hiking three to four times a week but lately have had diarrhea, dry mouth and a very pink tongue with a rash on my extremities. Along with the racing blood pressure what could be the problem? [/INST] The blood pressure value looks like it should be repeated. 199/165 isn't very likely. The rash and tongue are concerning for viral illness and should be seen by a physician. </s>