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There are multiple things involved in this, firstly, stop speaking over the phone (particularly a cell phone)for a long time this can damage the sensitive nerves in the inner ear
. Secondly, you seem to be suffering from allergy
items, whenever you consume any cold items ensure you drink enough warm water or do warm water gargles soon after. Regarding sweating, I would suggest you to contact a good physician and get thoroughly evaluated.
Dr. Naveen Kumar