The patron saints against neurological or nerve diseases are St. Bartholomew the Apostle and St. Dymphna.
There is no patron saint of the mind but there are patron saints against mental illness.
Brigid of Ireland is the patron saint of healers.
Against Illness
Probably Saint Dymphina as she is a patron saint against mental illness in the western Church and was a saint before the schism.
There is no patron saint agains Lyme Disease.
The Patron Saint Inde lists no patron saint against cystic fibrosis.
Saint Dymphna is recognized as the patron saint of mental illness and those afflicted with mental and neurological disorders. She is known for her compassionate nature and is often invoked for strength and comfort in times of mental distress.
William is a saint but not a patron saint unless your name happens to be William.
Saint Rita of Cascia. She is also the saint of lost causes, sickness, wounds, illness, and mothers.
St. Camilla is not a patron saint. However, Saint Camillus of Lellis is the patron saint of:against bodily illsagainst illnessagainst sicknesshospitalshospital workersnursessick people
Cammilus is the patron saint of: Abruzzi, Italy against bodily ills against illness against sickness hospitals hospital workers nurses sick people
The Patron Saint Inex lists no patron saints of bears.