My mother aged 58 suffers from cervical spondylosis from many years and from few weeks she is complaining of stiff neck and there is a bulge below neck like a hard lump on left which is painful.she thinks toomuch and always sweating through head much.there is a pulling pain from below neck to the left ear and pain in ear while moving head.is it related to vertigo or anything or how and what should be done next.she had put vaccine 2 months back so is this any side effect of it .