Your information regarding pain is insufficient and need clinical examinations and radiological investigations. Based on your information It looks like your pain is due to overuse which can be either tennis elbow or compression neuropathy ( compression of nerve from spinal cord to hand) . If it is outer side of elbow joint it will most probably due to tennis elbow. If it is inside of elbow joint it can be golfers elbow, another overuse syndrome.
Next Steps
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