Periodic numbness in left arm that comes with short chest pains and me gasping for air. all conditions come and go. what's going on?

See a physician: Left arm pain associated with chest pain and shortness of breath should be immediately investigated for cardiac issues, no matter your age. See a physician.

Chest pain: Chest pain should always be taken seriously. You should get checked by a cardiologist to rule out if its a heart attack. If these symptoms do not resolve immediatly, you need to goto the er to check if you are ok. With this history and symptoms u may have a heart condition.