I asked the question a minute ago But I meant to add more to the question Before I went off the page . I had fev1 pulmonary function test done over the years and I have tested and been at 55 for my fev1 and then the next time I went came back up to 60 and then in 2021 my fev1 came up to 65. I have since learned that if you have allergies that day or if something's going on it can change the results of your test and also who I was giving you the test can tell you wrong instructions or whatever. Can anybody give me any insight into this because I just went in my fev1 was 52 and I don't know what to think because I've been at 55 and then it came up later. It's got me a little worried now no one that the severe stage is close to 50. I quit smoking in 1994 so I've been away from smoking for about 30 years. Any input would be greatly appreciated thank you in advance.