Below is a list of symptoms that you may be experiencing due to the compromised nervous system. Personally experiencing most of these symptoms for many years, I understand the debilitating nature they carry. Many symptoms are overlapping with conditions such as Fibromyalgia, ME/CFS, FND, Long COVID & POTS 

Headaches

Dizziness

Tinnitus

Visual disturbances

Flashes of light in vision

Palinopsia

Migraines

Cognitive difficulties

Speach problems

Light sensitivity

Noise sensitivity

Loss of taste

Internal tremor/shaking

Brain fog

Functional seizures

Depression

Anger

Anxiety

Over thinking

PTSD

Stress

Muscle stiffness

Pain

Muscle heat/Burning

Limb weakness

Numbness

Extreme fatigue 

Tingling

Feeling heavy

Tremor

Heart pulpitations

Muscle twitching & Spasms

Internal electrical buzzing

Internal tremor/shaking

Tics

Pins & needls

Feeling too hot/cold

Restless Legs (RLS)

IBS

Post-exertional malaise (PEM)

Sleep disturbances

Insomnia

Hypnagogic hallucinations

Nightmares

Racing Heart 

Night sweats

Unrefreshing sleep