Thank you for writing to us.
I do not see anything wrong with your posture. You may need to see a Doctor to get a closer examination done to see that your back is fine even when it is put under strain.
See a Doctor to confirm this or to rule it out. Hope this helps you. All the best.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.