I suffered a heat attack (widow maker) and SCA February 2016. During the phase of rehab, I began suffering pain in both knees in the same area which I had not had before. Prior to my heart attack, I had been very active physically and have seen specialists for this knee pain as it has persisted for almost two years now. MRI, X-rays and blood tests show nothing that abnormal which would explain this aching, burning pain which never goes away. I also have skin rashes (quarter size and very itchy) on my arms, legs and torso. Also new since I began taking meds. Is it possible this pain is because of the two beta-blocker drugs I have been taking since my heart attack? (carvedilol 3.125 mg twice daily and lisinopril 2.5 mg once per day).Thank you Jim Pena