Does your pain increase while eating ?? Does your pain increase while sleeping ? Can you see any cavity on any of your teeth or any black discolouration

Visit near by dentist. Get the x ray done. Time being u can take pain killer.

Based on the brief description that you have given, you will need to get a thorough clinical examination done by a dentist, followed by X-rays if suggested..... the treatment plan will be based on the correct diagnosis..... theoretically,your pain can be due to localised tooth problem or a referred pain due to some other condition, like an erupting third molar..... Regards.....