The pain and discomfort in the lower left part of the stomach could be due to peptic ulcer disease. Peptic ulcer pain is usually a burning pain. They commonly occur in the stomach and duodenum. Stomach ulcers cause pain on eating and duodenal ulcers cause pain on fasting (2-3 hrs after eating). Peptic ulcers are eroded areas in the lining of the digestive tract usually in the stomach and duodenum. The two common causes for this are: infection with helicobacter pylori and use of non steroidal anti inflammatory medications (NSAID). Please consult your primary care physician for proper assessment.
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it might be your appendix so you should go to a docter ASAP trust me ,