I am taking Lisinopril 40 MG tablets (one a day) and Hydrochlorothiazide 25 MG (One a day). I have this heavy feeling in my thighs when I walk even 2 blocks. It feels as if I have walked up a mountain and am STILL doing so - achey and tired legs. I also have bad legs cramps at night (Charlie Horses). Have Cold symptoms - Cough, Sneezing, congestion. Have had Chest Xray, Pulmonary Test, Oxygen Level test - ALL OK. NO LUNG DISEASE. Had Treadmill test and EKG - no heart problems. Had Vascular Test - OK. Could LISINOPRIL be the culprit for all of this - especially the COUGH and Heavy Leg Syndrome? PLEASE HELP! VERY DISTRESSED!