Possible cause/causes of pain around the area of my frontal lobe(left part of my brain only)?

That is not just it,I have been having this pain on my face but only on my left face,then I can sense tingling or numbness but not to the extreme,but earlier this afternoon I felt most excruciating pain on left part of my face while I was chewing and I still got this pain at/on/in my left part of my brain (the frontal lobe). Last night I also had kinda of tense feeling on left of my calf muscle. Are those some kind of serious warnings?
Possible cause/causes of pain around the area of my frontal lobe(left part of my brain only)?
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