<human>: I have been getting very hot lately and randomly I will sweat a lot like A LOT my face and hands will lose all color turn white or green ish I can barely talk because I get tunnel Vision then I usually passout or throw up or both then its all better later on. Only thing I have noticed is Im not hydrating that much the days it happens
<bot>: Hello! Thank you for asking on Chat Doctor! Regarding your concern, I would explain that these symptoms could be related to different disorders: - low blood pressure - pheochromocytoma- thyroid dysfunction- carcinoid syn Chat Doctor.  For this reason, I would recommend you to closely monitor your blood pressure and heart rate during the day. Further tests may be needed: - a chest X-ray study- an abdominal ultrasound-thyroid hormone levels-blood electrolytes- urinary epinephrine levels. An abdominal MRI study may be needed if an a