Dear patient
Frequent cold and your all tests being normal can lead to diagnosis of rhinitis (allergic rhinitis or vasomotor rhinitis)
If your CBC isn't showing an derangement it can be
vitamin deficiency leading to fatigue
Dehydration leading to bodily fatigue
Next Steps
please consult for further course of rx and mx
Health Tips
keep yourself hydrated ,drink plenty of fluids
Have a balanced diet
Get IG E levels checked
Get your
vitamin levels checked as well