Hydrochlorothiazide-Lisinopril and blood pressure medicine

I had to re-start Lisinopril recently (almost 3 months now) and did not realize until I saw my Dr. last week that it was quite possible that that was what was causing my nagging cough, liquid phlegm cough-ups, burping at night, dehydration overnight, scratchy throat off and on at all hours of the day, loud chest coughing occasionally, my eyelashes are more brittle now, some leg cramping, and toe cramps, and watery right eye, would tear up quite a bit during heavy bouts of coughing. :( He just changed me to HCTZ which now I'm wondering if that is the same thing as Lisinopril? It reads that at the top of this post--what if they both cause an allergic reaction like this I am ALLERGIC TO SULFA COMPOUNDS so upon reading that pharmacist note above, I'm going to speak to my Pharmacist, My Dr's and my chiropractor too. I'll tell everyone I know, I've already heard from 3 other people that say they had a nagging cough and it turned out to be their blood pressure medicine.

Cough which after several months subsided but my knees crack when I walk. Dr. says can't be meds but it didn't start until I went on the med. Quit taking them and cracking subsided. BP went to 225/102 so started taking again last week and knees are cracking again.