I'm new to this site. I have had asthma all my life and also hypothyroid for a couple of years. I'm in my 50s. Im wondering if any of you guys can help me. Lately I've been having a feeling like my windpipe is swollen. It feels different then my usual asthma symptoms. I went for a complete physical. My heart was checked with an ultrasound type machine, I had a pulmonary function test. Thyroid blood levels checked out ok The doctor told me it's "probably" my asthma. I feel like I'm slowly being choked.