My friends symptoms are overheating / burning up at night, they wake up as with dehydration to body and brain which then causes brain fog in the morning and a headache. like his head is shut off from his body and can’t function. He Can drink all day some days trying to make up for it and doesn’t recover. He says it’s his insides that burn up . He has had routine bloods done in past but with nothing abnormal detected .
Thank you for any suggestions . Grateful for all your advice 🙏