You need to go and see a psychotherapist. This is the 3rd question you have posted regarding breathing, lungs and being afraid of them.
If you have never been diagnosed with lung disease then you have absolutely no need to be frightened of breathing, stopping breathing and lungs in general.
At the moment yes. Two weeks ago I lost my husband to lung complications (not through smoking). This is my first time on line since and I am so alone and devastated.