Hi Dear, Welcome to HCM. Understanding your concern. As per your query you pain in throat and stretching of neck while lying down , well there can be many reasons for symptom you mention in query like bruxism , TMJ problem , stress and anxiety , sore throat or muscle spasm. Need not to worry. I would suggest you to do stretching exercises of neck and jaw muscles , apply warm compresses on jaw and neck muscles and try to make yourself relax. You should visit general physician/ orthopedician once. Doctor may prescribe muscle relaxant , anti inflammatory. Doctor may also give you night guard and sedatives. Consult oral surgeon for proper diagnosis . Doctor will examine the bite plane , order CT scan or x-ray. Avoid intake of oily and fried food and drink plenty of water. You should take small meals and frequent meals rather than large. Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari