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These symptoms can be caused by the dehydration and electrolyte disturbances commonly.
Vbration sensation is due to the muscle twitchings in the abdomen.
Multiple slcerosis is not common at her age and causes other symptoms like urinary incontinence, vision problem, gait problem.
Do not worry about that.
Please let her drink fluids, electrolyte rich solution, fruits, vegetables to replete the electrolytes in the body.
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