I get chest pain when i bend forward or lean. like a cracking sound while stretching backwards. i get a sour taste in my mouth. i workout and it hurts?

Gerd: Before engaging in prolonged exercise, such as working out, you should have a complete physical examination. Toned muscles do not equal total overall health. See your Physician, have a physical exam to determine cause of your symptoms, then follow your Physician's advice to the letter.

Agree with Drs G&M: If you are overweight, losing weight will help. Try to exercise on empty stomach. Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/.