There could be numerous causes
of such symptoms - Vasculitis , TIA , Stroke
, Vitamin B12 deficiency , abnormal sodium and potassium levels in the body ,
Peripheral neuropathy , Multiple sclerosis , Nerve impingement in the neck , or other pathologies of the brain and/ or spine . Please do not panic . It may worsen your symptoms . Please wait for the MRI and consult a neurologist for the diagnosis and treatment . Hope this helps you . Take care and regards !