Hi Dear,
Welcome to HCM.
Understanding your concern.
Thanks for your query.I have gone through your query .The symptoms you mention in your query indicates towards condition called BRUXISM or grinding of teeth.Stress and anxiety are the most common factors responsible for it.
It can lead to certain problems if left untreated like pain in ear ,reduce in length of your teeth which further cause TMJ problem ,headache and tenderness in muscles .
I would suggest you to
consult dentist for proper evaluation and rule out other causes like dental infection or
ear infection .Your dentist may fit you with a night guard ,which will protect your teeth during night ,he/she may also prescribe you
muscle relaxant .
for now what you can do is avoid food and drinks containing caffeine,avoid alcohol and try to relax yourself.The knot in your neck occur may be due to peritonsilar abscess,
strep throat and pharyngitis ,
consult ENT specialist (ear,nose ,throat) for this.
Hope your concern has been resolved.
Get Well Soon.
Best Wishes,
Dr. Harry Maheshwari