My 3 1/2 yr old grandson has high
blood pressure (180/120 when not on amlodipine), abdominal pain usually radiating from the umbilicus, extremity (usually leg) numbness to the point of occasional collapse, loss of appetite, weight loss, sometimes naussea and/or diarrhea. He has also had episodes of temporary blindness. This all began to manifest this summer (1 month after he turned 3 yrs. old). Prior to that he seemed to be a bright healthy happy child.