I have a pain in my left upper ribcage when i take a deep breath out that started when i woke, pulled muscle? how to help?

See your doctor fast: Your question is concerning on a lot of levels given your youth and so you should see a doctor or go to urgent care right away. It is hard to pull a muscle in the chest area upon awakening. The pain upon breathing out could be a pneumothorax and should be evaluated. Other possibilities do include muscle strain, spasm or costochondritis.Please see a doctor for a good examination and keep us posted