Some people have been suffering for more than a year with no answers, no treatment options not even a forecast of what the future may hold. Researchers and data collection from scientists on post-COVID-19 illness had identified several neurological symptoms involving numbers of neurological disorder as listed below:

In this book will address the diagnosis of those symptoms as related to Post COVD infection or as pre-existing chronical illnesses

1. Doing tasks in the wrong order
2. Finding difficulty to do multi tasks at the same time
3. Forgetting to do things often
4. Working on automatic; not thinking
5. Headache and getting tired after performing small task
6. Memory, concentration, or sleep problems
7. Depression or anxiety
8. Feeling tired or yawning all the time
9. Being more irritable than usual
10. Being frustrated by tasks
11. Having difficulty concentrating
12. Loss of smell
13. Vertigo symptoms