Could long term Humira cause any neurological issues?
It mays cause some
humira (adalimumab) may cause headache frequently (12%). It may also cause demyelinating disorders like optic neuritis or Guillain-Barre syndrome and cerebrovascular events (subdural hematoma), confusion, tremor and paresthesia. Adalimumab may also cause a myasthenia syndrome.
I hope I've helped!
Please inform me about your symptoms
If you would inform me about the symptoms that bother you, I would be able to give you a more accurate answer.
A neurologist is the right specialist
Something is missing from you answer but I got the idea. These symptoms can be attributed to Humira but other potential problems have to be ruled out first.
You should see a neurologist for further investigation.