i get a muscle like cramp in the center of my chest, just to the right, it seems like it is right under the right breastbone, (where i cannot rub it out)... it starts burning super bad, then i get really really hot and have a difficult time breathing, although i am taking plenty of breaths.  if i lie on the floor with arms spread wide and a fan and ice pack, slowly the cramps release and after a few minutes, you cannot even tell i had this episode.
Thanks for your question on Chat Doctor. I can understand your concern. Muscular cramps are common in sodium, potassium, calcium and vitamin D 3 deficiencies. So better to get done serum levels of sodium, potassium, calcium and vitamin D 3. If deficiency then you need supplements. If levels are normal then no need to worry much. Sometimes stress and anxiety can also cause similar symptoms. So 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.