What are causes of upper chest pain on the right side for a 20 y/o man? hurts to press against it, not on its own. no lump.

Chest pain: You stated that the you have the right side of the upper chest pain to pressure. Your age is 20 years correct? Have you had any other diseases in the past? Have you had trauma in the past? Were you involved in a motor vehicle accident in the past? Days, months, years? Is the pain against the chest wall, in the axilla, radiating towards the front, or towards the back. Do you have pain when you br