Thanks for contacting healthcare magic. You have problem of dizziness after sudden movement that may be because of inner ear disturbances. Injury or infection in ear cause dizziness. In Benign paroxysmal positional vertigo sudden change a position of head or sudden body movement aggravate a condition.. Viral infection of vestibular nerve cause vestibular neuritis. Consent a ENT specialist for further diagnosis. Otoscopy examination and history give exact idea. Low blood sugar level and blood pressure problem cause dizziness. Anemia condition cause this problem also. I hope my guidance is helpful to you.. Take care. Thank you.