Hello, I can understand the distress you are through. Your problem could be indicative of panic attack and possible panic disorder. However, none te less a detailed history and evaluation if your problem is required. Associated anxiety disorder problem are very likely. Persistent fear of having another panic attack tends to impair the functioning to large extent. After an assessment and considering other factors, a definitive management plan can be decided. Most importantly, it can be completely cured.
Next Steps
I would suggest you to consult with a psychiatrist. For more information and specific suggestions regarding the management and how to deal with it, you may consult with me directly here on practo.
Health Tips
Have a nice day.