Hi
With your available history and age it's probably a muscle pain that usually aggravates when you stretch more. You can take pain relievers for 2 days with complete rest.
Further i need
*Nature of your job
*Alcohol consumption history
*Food habits
*Tuberculosis history.
Still the pain is not settling down and sharp pain, you can go for scan test (USG abdomen) to rule out other problems.
Get well soon!
Next Steps
take rest, have plenty of water, pain relievers for 2 days.