Im having a tingling/itchiny/numbness of the skin in patches on my stomach, side, and leg. its been continuous for about 2 days now.

Pinched nerve: The combination of tingling and numbness indicates nerve involvement if persistent. For pain and discomfort, take OTC pain reliever like ibuprofen 400 mg three times daily for a couple of days. If symptoms persist, should make an appointment with your PMD for an evaluation. Feel better:)

Uncertain of cause: This can't be diagnosed with the information that is available. A history, physical examination & other studies may be needed to determine cause/causes.