My daughter's upper inside arm started hurting last night suddenly and is somewhat swollen. Her neck is very sore and slightly swollen as well. Her neck has been sore for a while though. She hasn't slept a full night in months, but slept all night last night and didnt wake up until noon. She's groggy and feels nauseas. However, she gets a sore neck and nauseas often when she is over due for a chiropractic adjustment.

How should I treat this? Rest or does this sound potentially urgent? Thank you!!!

Optional Information:
Female , Age: 15.5

Already Tried:
rest