Hello, have anyone tried memantine for memory loss? And/or treatment for DID?

I did see my neurologist, we are not clear fully what the cause of the nerve pain is, but i Experience extreme pain episodes, seems to be fibromyalgia, not sure yet but because Of this im taking Low Dose naltrexone and memantine. Memantine have been making my brain weird because im recovering memories i did lost and connecting with myself again, i feel weird. But wanted to ask to someone if you have tried memantine for DiD. My neurologist doesnt know and i have not been officially diagnose since there are not test for Dissociative identity disorder or Dissociation, so wanted to get more info here on internet. Im going to EMDR therapy soon and im scared of integrating parts or getting more fragmented. Super anxious, but at the same time excited for my healing journey, also i did psilocibyn in the past which was the tool that allow to discover my system, i think is important you know that