Why do I feel pain in the lower left part of my stomach ?

@onyekachukwu, these are symptoms that sound like you should talk with your doctor. See this article:
- What’s Causing Pain in My Lower Left Abdomen?: https://www.healthline.com/health/pain-in-lower-left-abdomen
"Diverticulitis, hernias, endometriosis, and twisted testicles are just a few possible causes of pain in the lower left abdomen. Seek medical help if your pain comes on suddenly or is accompanied by symptoms such as fever or vomiting."