I have been experiencing pain inside my neck, lower ear, and shoulder for a month. I feel a little pain when swallowing and have headaches when fasting.
A throat infection, cervical muscle strain, nerve irritation, or enlargement of the lymph nodes could be the cause of neck, lower ear, and shoulder pain along with difficulty swallowing. You should consult an ENT or doctor for an evaluation because this has persisted for a month. Low sugar, dehydration, or acidity are common causes of fasting headaches.