### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi my name is David, this morning when I went to work I only had 3 hours of sleep, on my way I ate 3 pieces of wholemeal bread with nutella spread and a peeled apple. After 10 to 15 min, I reach the carpark upon leaving my car I felt dizzy, my head was spinning followed by cold sweat. I could not stand up I had to sit down afraid that I might faint. Shortly after that i went to the mens room and thats went I started to sweat like crazy....cold sweat. I thought something was wrong with my food I tried to put my finger down my throat I throw it all out but unsuccessful. After about 30 mins I did the same thing again and manage to throw out and almost cleared my stomach then I felt better. Was it my food or maybe the water I drank, thank you.

### output:

Dear Concerned., Thanks for writing to us. Basically to maintain the Biorhythm an individual needs to sleep for 06to 08 hours a day. Otherwise, there will be definitely increase in blood pressure. The initial symptom of cold sweat and dizziness could have been a result of sudden variation in BP as a result of lack of sleep. This is physiological or normal phenomenon. You have not mentioned regarding whether you have passed urine when you went to restroom. Sudden evacuation of bladder in such a situation will lead to gushing of blood to the urinary bladder musculature depriving the brain from its blood supply for seconds as the urine passes out and the bladder musculature normal in thickness(In its maximum capacity the bladder would balloon out to store urine up to 750 ml almost obliterating its own blood supply if you withhold passing urine). The sudden crazy unable to stand, and you had to sit up was due to a Condition called Micturition Syncope. It is almost always Physiological or normal phenomenon. Now you may ask why the condition improved after you have thrown up the Gastric contents. You have relieved the Gastrointestinal System from the work load and the blood supply was restored to the Nervous system. Again Physiological and it was untimely food in all probability. I am giving you only the probability as I have only read the history and not examined you physically. In both cases i.e., the root cause seems to be due to sudden change in your Biorhythm/lack of sleep. It does not seem to be due to quality of Food or water Per Se but due to irregular sleep/eating pattern. Kindly help yourself with normal sleep. In the event of non improvement kindly consult a locally available General Physician for a complete evaluation. Get well soon. Best Regards., Chat Doctor. 