Hello, I’ve been feeling very tired and sleepy throughout the day, even though I only work for about 3 hours (from 11 AM). My work mostly involves sitting idle, but after returning home, I feel extremely exhausted and can hardly keep myself straight. I take Ebast M at night for my allergy problem, but I stopped it for a week to check if it was causing the tiredness — there was no difference, so it doesn’t seem related to the medicine. My sleep duration is normal, and I don’t do any heavy physical work, yet I constantly feel low on energy. Could this be due to any vitamin deficiency or hormonal issue? Please advise if I should get the following tests done: CBC (Complete Blood Count) Vitamin B12 Vitamin D3 Thyroid Profile (TSH, T3, T4) Thank you.