Hello DOCIam getting sudden deep breaths often. The best way I can describe it is like when you have a good, hard, long cry and afterwards, you have the hiccup-type deep breaths.  This is what it is like.  In between these episodes, however, my breathing appears to be completely normal.
Thanks for your question on Chat Doctor. I can understand your concern. Your breathing difficulty is associated with crying. So no need to worry about any lung diseases because breathing difficulty while crying is due to stress and anxiety. So better to consult psychiatrist and get done counselling sessions. Try to identify stressor in your life and start working on its solution. You may need anxiolytic Chat Doctor.  Don't worry, you will be alright. Avoid stress and tension, be relaxed and calm. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.