I started lisinopril 2 weeks ago for hypertension and yesterday developed swelling to my abdomen and left upper leg that it is tight over my knee and difficult to bend. I know it is a side effect to this new med since I usually swell a little on my right knee from overuse after I had a meniscus repair a few years ago and if it was from too much sitting or standing the right knee would have been the first to swell. It is too bad that this side effect developed as the medication really helped my blood pressure initially but now I feel so bloated.