Antiepileptic drugs and perfect pitch

Hello. Please excuse my bad English (I'm Japanese and I'm using Google Translate to type this.)

I am interested in the relationship between perfect pitch and antiepileptic drugs.

I'm currently using mirogabalin, and I'm surprised that my singing has gotten worse (maybe it hasn't actually gotten worse, but when I listened to the recording myself, I was surprised to find that it was worse than before.This means that I felt like my singing ability was declining.）

I think I read a paper a while ago that said carbamazepine had a negative effect on perfect pitch.

Considering what happened to me this time, I felt that not only Carbamazepine, but also antiepileptic drugs and drugs that affect agitation could take away talent.

On the other hand, I have also heard that people can acquire perfect pitch by taking Sodium Valproate.

What do you think about the relationship between these drugs and musical ability?

Being bad at singing is fatal to me, so I hope this is temporary. If you have any countermeasures or personal opinions regarding this, please let me know.

I am also concerned about the effects of mirogabalin (a drug similar to Lyrica) on intelligence and musical ability. Although I feel that my musical ability has declined, I feel that my ability to reason and think about things has improved. (Originally, I wasn't the type to think things through too much, but after taking mirogabalin, I feel that my thinking ability has improved. However, on the other hand, my cognitive function has simply declined, and my brain hyperactivity has worsened.) As a result, you may just feel that your thinking ability is improving.I've heard many stories that Lyrica lowers cognitive function, so I think that's a possibility.