I am taking Lisinopril 40 MG Tablet (1 a day) and Hydrochloorthiazide 25 MG tablets (1 a day). Have heavy feeling in my legs when I walk - like I have walked up a mountain and am STILL walking up one. I get out of breath easily and sometimes feel weak. Have had Chest Xray, Pulmonary Test, Oxygen level test and all are great - no lung disease! Treadmill test and EKG - no heart problem. Vascular Test - no problems. Have Cold Symptoms (sneezing, cough, congestion). Could Lisinopril be the culprit all this time?