Impacted wisdom tooth
along with infection if present can lead to the symptoms as described by you. infection in such cases spread to the path of lowest resistance and it can either progress to neck spaces or spaces around inferior of the mouth or aroud shoulder. so pain in these areas. its better to get it removed as soon as you can. in the meanwhile take amoxycillin
500mg three times a day along with voveran
three times a day. do warm saline rinses 3 times a day.
wishing you healthy life
with best regards