As per your description it seems like muscular pain only, because you feel pain during movement. Stress and anxiety can temporarily increase your blood pressure, your heart rate and can cause muscle spasm and chest tightness. if it continues you need to consult the doctor again.
Next Steps
Manage your stress levels with relaxation and breathing exercises. Perform pranayam and yogic exercises as it helps a lot.Take proper nutritious diet along with some cardio exercises.
Health Tips
Rule out your acidity problem if it exists