Have a headache/migraine? Submerge your feet and hands in hot/warm water and put a bag of frozen peas at the base of your skull. The heat on your extremities pulls the blood from your head relieving some/all of your headache.
The upper trapezius (traps) knot up very regularly and cause you to feel tight, hunched over and can often cause stress and tension headaches. All you need as a firm self massage/trigger point ball (Lacrosse ball is great if you’re in the USA!) and do the following exercise for a great myofascial release:
Myofascial Release: Tight neck and shoulder self-treatment! -