text: why do i feel sick,scared and dizzy since i have had a proprioreceptor reflex on my neck?   a propioreceptor indicates muscle activity and the awareness of the body and its relationship with the surrounding environment is mediated by sensation.  the input to the brain stem about this information ( feel sick, scared and dizzy) emanates from the joint and muscle proprioceptors ( such as theone located on your neck), the vestibular centers in the ears, and from the eyes.