Hi welcome to the health care magic For tingling cause has to be searched for and treated accordingly for relief... You doesn t have vitamin B12 deficiency as your report normal... Rule out diabetes by RBS estimation as diabetic neuropathy might be the reason... Rule out any thyroid, lived or kidney problem by biochemical investigation of serum TSH, serum urea, creatinine, liver enzymes estimation.. Avoid alcohol if habit... If vascular lesion suspected than colour doppler needed for that NCV and EMG study helpful for neurological or myogenic cause investigation Finally only if needed (spinal cause suspected) MRI done for that Take care With keeping this in mind consult physician or neurologist for examination and further work up Hope your concern solved