Need two information :were you in ventilator and are u diabetic? .
If not all viral infection causes fatigue, mild arthralgia, drink plenty of water and nutritious food, not to worry it will resolve.
Next Steps
hydrate yourself well,
take
vitamin tablets
Health Tips
nutritious food, mild breathing exersices
check your saturation often.
if your diabetic, took steriods/admitted in ICU
kindly refer nearby Doctor.