I googled it and got results that this might be a sign of lung or heart disease. I do have asthma but have had that for a long time. I'm just now switching my arthritis meds to something that is better for my heart and less stress on my liver. However, I still take 5mg of prednisone daily and have for a long time.
The sites also said that B-vitamins might help.
Has anyone else every had this? What did you do?