Post covid weakness and aches / pains can persist upto 1 to 2 months
Next Steps
Please take care that you are consuming a good high protein diet ( can add on a whey protein , soya bean , milk , curd / yogurt , pulses , non veg if you consume non vegetarian food , eggs )
Increase your fluid intake add on coconut water / electral
Health Tips
Do regular breathing exercises
Gradually increase your physical activity
And most of all be patient with yourself