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

### input:
Hi, my name Is Carlie. Im a 25 year old female and ive been having these symptoms for about 5 months now. All my blood tests came back fine and so did my stool sample. I have been sent a referal to a neurologist but I am starting to feel im losing my mind. Ive lost weight going from 65kg to 56kg in 3 months without change to my diet. Although I am not feeling hungry as much as usual im making sure im eating. I did have diarrhea for about 6 weeks where I was going to the toilet 20+ times a day with no found medical reason. Having no recolection of important things people have told me. Trouble concentrating on things. Unable to go with the flow of conversation and forgetting what im saying halfway through. Hot flushes like someone has poured a bucket of warm/hot water on my head and it flows down my whole body. Fainting spells where I feel like im shaking. Zoning out when talking to people. Friends and family have commented on how I constantly repeat myself during one conversation or telling then the same thing multiple times because I didnt remember telling them or stand there staring. Nausea and vomitting (not always together). Some severe headaches (about 8 in this time frame) I feel like its hard to focus my eyes and am seeing white spots and lines sometimes very bright white. Hot feet at night. Sweating even though I feel cold to touch. I have suffered from anxiety before but do not believe this is because of that. Ive never felt more in control of my mental health. I feel like im living in another world and its starting to effect my everyday life. I do not drink any alcohol or do drugs. I am no longer on any medication but did take anti psychotics to help me sleep for about 2 months in this time frame but it started before and continued after use. Thank you in advance for your time :)

### output:

Hello !  I went through your question carefully. I understand your concern. There are many points in your situation that need to pay attention. The lost weight and frequent diarrheas can cause nutritional deficiency, causing your memory problems. There are some main disorders that may be the cause of your problems. A hyperthyroidism can cause this clinical situation, so I would strongly recommend thyroid hormones' analysis to rule this out. This would explain also the hot flashes. A rare disorder, called pheocromocytoma, which is a tumor of the renal gland can cause similar troubles. I would like to know if you have measured your blood pressure during your troubles. If these episodes are associated with high blood pressure and tachycardia I would recommend the analysis of metanephrines in your urine, to exclude this disorder. Another point would be a food intolerance like gluten intolerance, so you should also be checked for anti-gliadine antibody. But this would be exceptional at this age, as it begins since childhood. If all the above tests result normal, a neurological evaluation and a head MRI would be necessary. Hope to have been of help! Thank you for using Chat Doctor! Greetings, 