Visit nearby physio, or take online assessment on practo by physio to understand the nature of pain, as the different nature of pain gives various diagnosis. And it is involving chest, so better get consulted by Physiotherapist.
Next Steps
For now do quiet breathing exercise for 10 repetitions 5 times daily with a gap of 2 hours in between of each set and work on your posture.
Health Tips
Do not perform heavy tasks like, lifting heavy objects, riding scooter for long time in bad roads, wringing clothes, constant and longtime working on laptop, and use of too many pillows