Hello and welcome!
It's great to see that you've taken an interest in learning more about TLE & co-morbid disorders. I have TLE and have been diagnosed with Bipolar Disorder, Borderline Personality Disorder, and OCD. I've only been diagnosed with these things for 2-3 years now. I have never been checked to see if my mental illnesses are due to my epilepsy. As far as my psychiatrist is concerned, they are mental illnesses independent of my neurological disorder.