fatigue worse during the day.
If symptoms regularly wake you up, it is worth discussing them with a healthcare professional.
## What Can Cause Nerve Problems?
Nerve symptoms can have many possible causes.
Common ones include:
* diabetes
* vitamin B12 deficiency
* excessive vitamin B6 supplementation
* thyroid disease
* kidney disease
* alcohol misuse
* chemotherapy
* certain medications
* autoimmune conditions
* nerve compression
* spinal disc problems
* infections
* physical injury
Sometimes no obvious cause is identified.
## Diabetes Is a Major Cause
Persistently high blood sugar can damage nerves over time.
Diabetic peripheral neuropathy often begins in the feet and may cause:
* numbness
* tingling
* burning
* pain
* reduced ability to feel heat or injury
Good blood glucose management can help reduce the risk of further nerve damage.
## Vitamin B12 Deficiency Can Affect Nerves
Vitamin B12 is important for maintaining healthy nerve cells.
A deficiency can cause:
tingling
* numbness
* weakness
* balance problems
* fatigue
* memory or concentration
