My son is 33 yrs old he says he feels hot all thetime and sweats when not hot?

Neds workout: Your child(33Y.O.)needs medical check up including full blood work, ecg, spirometry, PPD test and other tests depending on previous results.

Over active thyroid: He should be checked or over active thyroid. A TSH test will provide necessary information.

Any other symptoms?: Sore throat, cough, sinus pain, difficulty breathing, muscle aches, joint pains? Have u checked his temperature? Has he travelled outside the us recently? Keep hydrated with fluids. May be infection (viral/bacterial/fungal) or metabolic problem like diabetes or hyperthyroid. Should see pcp soon (at once if temp over 103˚) for thorough exam, tests, treatment. Take along list of meds & supplements.

Check blood work: Is he taking medication or drugs. If not have him see his doctor to have his blood work checked, specifically his thyroid.