Lisinopril and air purifier

I have been on Lisinopril for about 2 and 1/2 months for borderline hbp. About 135/85. I have two cats which have always have caused some allergic reactions but I had that controlled with an air purifier. I really haven't had any bothersome symptoms until about 3 weeks ago when I noticed that I was wheezing during the day (while away from the house, so I couldn't blame the cat allergies) and I was getting very short of breath doing everyday tasks and just talking to people. Then I started noticing a strong post nasal drip and a lot of congestion during the night. To the point where I sounded like something from the Excorcist, my breathing at night was rattly and wheezing. It suddenly occured to me that all of this could be developing side effects from the Lisinopril. But I didn't want to give up so I started taking Claritin at night and in the morning to relieve some of the exasperated allergy symptoms. That worked for about a week, but then I would wake up coughing and finally last night the wheezing got so bad that I thought I would need to go the ER. Today the coughing started pretty badly and just taking my dogs for a walk was taxing and I started getting really tired and developing a headache (which never happens to me). After researching Lisinopril and now reading everyone's posts and symptoms and obviously experiencing this terrible cough and wheezing, I have made up my mind to go off this terrible drug. I can't live with this. I am only 42 yrs old and I feel like I am an 90 year old with emphysema. Bye bye Lisinopril.