Why Do You Have Pain Here When You Run?

Sources:
1.       https://pubmed.ncbi.nlm.nih.gov/28365296/
2.       https://www.health.harvard.edu/staying-healthy/does-exercising-at-night-affect-sleep
3.       https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4281377/
References:
https://www.greatrun.org/training/how-to-avoid-a-stitch/
https://www.healthline.com/health/stitch-when-running
https://www.wired.com/2014/12/whats-up-with-that-running-hurts/
https://www.runtastic.com/blog/en/12-tips-to-avoid-a-side-stitch-when-running/