I get dizzy too when I get up and start walking. I take my BP and sugar and they are both fine most of the time. Have you had your arteries checked in your neck Donnaeil since it is happening when you turn your head.
Ginny all the muscles in my neck are a mess and the jury is still out on whether I have CFS along with fibro and MPS.
I have had but it is rare for me to have dizziness when I am sitting. That usually is a drop in BP or sugar.
luv and hugs
Marlee