Why am I shaky after stomach virus? I had norovirus five days ago for 24hrs went to the dr for dizziness/nausea yesterday was given stemetil. Not dehydrated, BP ok but so shaky and legs feel weak. Why is this and how long should it last?

Electrolyte . Imbalance is common after viral infections. Specifically Potassium and Magnesium are commonly affected and may cause muscular symptoms. Enriched drinks as well as extra fruit and vegetables should help in a matter of few days. If that is not the case would suggest contacting your doc for further instructions.