Hi. your description is spot on “slight dizziness or lightheadedness or Balance” I do know that I have a tendency to raise my shoulders upward stressing the neck shoulder area, PT daughter tells me this action is very common when using “devices” and the result is tension in the neck/shoulder. I found myself doing this while I was typing this comment. There are some a number of stretching movements on line, search “relieving neck pain” WEBMD has a number of them. Good luck with your journey.