Lisinopril and baseball bat

I had two TIA'S In May and they put me on Lisinopril and told me to walk and then walk some more. After about two blocks I would start to develope a pain in the calf of my left leg, not a cramp but it felt like some one hit me in the back of the leg with a baseball bat. With pain I could do a mile and then it got worse. I would need to stop numerous times during the mile and give the leg three or four minutes rest. After the rest it wouild feel normal for about three minutes and then the pain would start to return. I have told my doctor that I think it is the Lisinopril that is causing it but he says it is impossible.

I have had a ultrasound done on my legs and it shows about 50% artery blockage but the specialist says it would need to be 80% clogged to cause these symptons.

I would be interested to know if any of you have had these symptons that you can directly charge to Lisinopril.