Conversation: The conversation between human and AI assistant.
[|Human|] What does it mean if I have an eating disorder and everytime I stand things go black and it becomes hard to stand only for a few seconds though ?Also my heart rate recently will be very rapid then all the sudden drop to th point where I can barely find it while checking my pulse?
[|AI|]  Hello! Welcome and thank you for asking on Chat Doctor! I understand your concern and would explain that your symptoms may be related to orthostatic intolerance (orthostatic hypotension or postural tachycardia). Have you measured your blood pressure during these episodes? A head up tilt test is necessary to rule in/out this diagnosis. If these episodes occur only after eating, it may also be related to post radial hypotension (an autonomic reflex from the gastric distension). I recommend consulting with your GP for a careful physical examination, a resting ECG, a chest x-ray study and some blood lab tests (besides the head up tilt test): -complete blood count (for chronic anemia)-fasting glucose-blood electrolytes. Hope to have been helpful! Feel free to ask any other questions, whenever you need! Best wishes,