What are the symptoms of tennis elbow and how can you cure it?

I’m a construction worker and do a lot of manual drilling and hammering. My right elbow hurts a lot and i have to "pop" it constantly. Colleagues have told me it might be tennis elbow but i don’t know what the symptoms are and how to cure it. No i do not masturbate a lot. This is a serious question. Serious answers only please

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