how do they diagnose CVID or MAC
I'm 64 . I have had COPD for about 14 years. In the last 2-3 years I have had lung infections bacterial and viral pneumonia Except for Oct 2016 when I was first diagnosed with pneumonia and in March of 2019 when I was diagnosed the 2nd time, my 6 month blood work is normal..Same with my urine tests. Following the March 2019 episode the test where you breath into a sealed balloon was analyzed normal. The only abnormalities were x-rays preceding my 2016 and 2019 hospital admittance. SInce the 2019 episode I have had to follow-up x-rays since my release from the hospital. One in APril and the other 2 weeks ago. Both show pockets of infection. I have a 3rd test a ct scan next week. I'm concerned that I have MAC or CVID. I only recently heard of these diseases from this group. Any insights or similar experiences to share?