<human>: Symptoms...blurry vision. Dizziness, tingling all throughout the body. Nausea...sweaty ...pale skinned...passed out for few seconds. When came to...felt like fell asleep for 5-10 min. Keep yawning. So tired. Any thoughts? 49 yo male. Healthy. No maintenance drugs. Exercise regularly. Healthy eating.
<bot>: Hello! Welcome on Chat Doctor! I carefully read your question and understand your concern. Your symptoms could be related to different causes : including thyroid dysfunction, chronic anemia, low blood pressure, sleep apnea, etc. Have you measured your blood pressure values? So, I would recommend consulting with your attending doctor for a physical check up and some tests: - a chest X-ray study and respiratory function tests- an arterial blood gas analysis- a cardiac ultrasound-thyroid hormone levels - cortisol plasma levels for a Chat Doctor.  Hope you will find this answer helpful! Kind regards, 