According to your sign and symptom you have tightness in chest with pain as in upper and middle abdomen with stretching .
Reason- Gastric problem,
More spicy and fatty foods,
Any muscle inflammation and
Any git inflammation.
Next Steps
You should take consultation for better evaluation and best treatment.
Health Tips
Please follow good life style as take plenty of fluid and take less spicy and fatty foods and do exercise regularly with yoga and meditation and keep positive attitude to fight any disease and any problem of your life.