<s>[INST] I have been on blood pressure meds since last August 2009. About a month ago, my physician added 12.5 mg diarutic to my 160 mg of diovan dose...which dropped my BPs back consistently below 140 with better bottom numbers. I take my pressures before and after my 30 minute llunch break workouts. My BP is always 10-15 pts. better after my workouts. Today before my workout my BP was 127/90 and after it dropped for the first time down unusally low to 90/64, with similar BPs up to six hours later. At 8 hours, it finally rose back to 117/64. I have not felt just right for 2-3 days (some headaches and acid reflus like feelings). Should I be concerned? [/INST] Hi, I passed carefully through your question and would explain that your blood pressure values are a little low (90/64) and this may lead to some dizziness and lightheadedness. But, if such blood pressure values persist, I would recommend avoiding diuretic intake. Otherwise, there is no need to worry or make any change to your therapy.  Hope I have answered your query. Let me know if I can assist you further.  </s>