Im 54 and already on atenelol and moduretic for Hypertention, I also have type 2 diabetes ,my Doctor started me on Lisinopril he said to protect my Kidneys. I woke up the 2nd day of taking these pills 5mg and the back of my hand and arm was red. I was very tired and didn't want to do anything. This morning , the 3rd day I woke up feeling fine and ate 1/2 choc cookie with walnuts on top, Ive eaten walnuts all my life with no problem, suddenly I felt my lips and face swelling and tongue, and my hands were burning really bad and I developed large welts on my legs and arms I had heart palpitations and got really scared. I ate some cherrios and drank some water and calmed down and the symptoms went away as fast as they had come. I found this website and will be calling my Doctor today.