The most likely explanation for your current symptoms (constant low energy, heavy head, heavy/tired eyes despite good sleep, white mucus from cough & nose) after a 2-week fever is post-viral fatigue syndrome / prolonged post-viral asthenia (very common after respiratory infections, even when blood tests are normal).
The white mucus still present means the respiratory tract inflammation has not fully settled yet — this is typical 2–6 weeks after viral illnesses (adenovirus, rhinovirus, influenza, RSV, etc.). The heavy head + eye fatigue + low energy are classic brain-fog-like features of post-viral state. Palpitations during anxiety are almost certainly anxiety-related (not primary cardiac) and are very common when the body is still recovering.
Other causes are much less likely since:
• Blood tests +
thyroid = normal
• No fever now
• No major weight loss, night sweats, swollen nodes, severe shortness of breath, or neurological signs
Next Steps
1. Give your body time — most people with this exact pattern improve noticeably in 3–8 weeks after fever ends (total illness duration 5–10 weeks).
2. See a doctor (GP or internal medicine) within the next 1–2 weeks if:
• Symptoms get worse instead of better
• New fever returns
• Cough changes (yellow/green sputum, blood, severe)
• Breathing difficulty or chest pain appears
They may check:
• Repeat
CRP/ESR (inflammation markers)
• Chest X-ray (if cough persists >4 weeks total)
• Possibly
ferritin (even if CBC normal — low ferritin can cause fatigue)
3. Safe to resume 8–9 hours desk work?
→ Yes — but modified (not full intensity yet).
Start with 6–7 hours/day maximum for the next 1–2 weeks.
Take short breaks every 45–60 min (5–10 min walk, eye rest, stretch).
If brain fog / eye heaviness becomes severe by afternoon → reduce to 5–6 hours or work from home part-time.
Full 8–9 hours is usually realistic again in 2–4 weeks if you follow recovery steps below.
Health Tips
• Hydration & mucus clearance
• Drink 2.5–3.5 liters water/day (warm water + lemon/honey helps mucus)
• Saline nasal rinse (NeilMed or Sterimar) 2×/day
• Steam inhalation 10 min 2×/day (plain or with few drops eucalyptus oil)
• Energy & brain fog support
• Eat small frequent meals (protein + complex carbs + healthy fat every 3–4 hours) — avoids energy crashes
• Prioritize protein (eggs, chicken, fish, paneer, lentils, Greek yogurt)
• Add omega-3 (fish or 1 g EPA+DHA supplement) and magnesium glycinate 200–300 mg at night (helps fatigue, anxiety, eye strain)
• Eye & head heaviness
• Follow 20-20-20 rule (every 20 min look 20 feet away for 20 sec)
• Use artificial tears (Refresh Tears / Systane) 3–4×/day
• Limit screen brightness + blue-light filter after 6 pm
• Anxiety & palpitations
• Practice 4-7-8 breathing (inhale 4 s, hold 7 s, exhale 8 s) × 4–5 cycles when palpitations/anxiety start
• Avoid caffeine after 2 pm
• Short walks (10–15 min) 2–3×/day — improves circulation & mood
•
Vitamin D
• Continue 60,000 IU monthly (or switch to daily 2,000–4,000 IU) — recheck level after 2–3 months
You are in the recovery tail-end of a viral illness — this sluggish phase is frustrating but temporary for almost everyone.
Rest smart (not complete bed rest), eat nourishing food, stay hydrated, protect sleep — symptoms usually fade steadily over the next 3–6 weeks.
If anything worsens or new symptoms appear, see a doctor promptly.
For more personalized advice (diet ideas, exact supplements, or when to push back to full work hours), feel free to consult online.
Take care — you’re already improving