After a viral fever, mild dizziness and slightly lower BP can occur due to dehydration, reduced intake or weakness. Your pulse of 80/min is normal. The BP readings mentioned are not necessarily alarming if you are otherwise stable.
Next Steps
Continue adequate fluids/ORS and take light, regular meals. Monitor BP and symptoms for the next few days. If dizziness persists or BP remains consistently low, consult a physician for examination.
Health Tips
Take sufficient water and Electral, especially if intake has been low. Rise slowly from bed/chair and avoid prolonged standing. Seek prompt medical care if you develop fainting, severe weakness, chest pain, breathlessness or persistent vomiting.