Can anxiety cause horrible brain fog, diziness and exhaustion ? symtoms for a year. been to the doctor and specialists 20 times. have done 4 bloods with more than 40 parameters each. all ok. but nothing seems to help. i'm feeling so low and desperate?

ANXIETY: Yes. Consult with a Clinical Psychologist with expertise in multiple types of psychotherapy to help you with ZOOM & a Psychiatrist for medication. If you are not sleeping well, you need help with that, possibly a sleep study. Your fears and anxiety could be heightened because of the Covid-19 pandemic. Stay safe, cautious & hold on to hopefulness to elevate your immune system.

Mental health care: These symptoms could go along with anxiety, despression, or other psychological problem. With such extensive evaluations and no explanation, a mental health problem is likely. Have the specialists you saw included a psychiatrist or psychologist? If not, that's your next step. Or discuss with that provider ASAP if already in mental health care. "Low and despirate" means it's urgent. Good luck.