I am 48 years old and have been on Lisinop/HCTZ for about 6 weeks...

I am 48 years old and have been on Lisinop/HCTZ for about 6 weeks. From the onset of taking this medicine I have experienced swelling in my legs -- from knees to ankles. Also my stomach has swelled. Now I am experiencing muscle cramps in my legs that are bothersome when I stand up or lie in bed. I never had this on my other BP meds, but my doctor switched me to Lisinop?HCTZ. The doctor thinks it could be my heart, lungs, or kidneys causing the swelling. HELLO, take me off this stuff first!