I work out regularly for years.but last time i was unusually drenched in sweat,feeling sick and dizzy while working out.that is not usual for me.my strength seems fine but i feel dizzy and nausea,and i am drenched in sweat.what can be causing this?

See your Dr.: Dizziness, Nausea and sweating are non specific symptoms which could be caused by many things. If it persists or interferes with daily life, talk to your personal Dr for a thorough History, Physical exam and diagnostic tests/imaging. Additional symptoms like shortness of breath or chest pain should be taken seriously and you should go to the Emergency Department to be evaluated.