Hello everyone, my name is Jean-Paul. I have a general quest

Hello everyone, my name is Jean-Paul. I have a general question with regards to Pregabalin and sleep. In 2014, I was diagnosed with restless leg syndrome, bruxism, and sleep apnoea. I was given Pregabalin and I have been on it for the past six years (roughly 75mg or 100mg / night). Ever since I started taking this, I’ve been trying to come off it, but without success. If I go below 75mg, my sleep becomes severely disrupted and I have no choice but to go back up to 100mg. I have tried many different strategies alongside the usual range of alternative ones (CBT, Mindfulness, Progressive Muscle Relaxation, Autogenic Training, Yoga, etc.). Has anyone experienced the same difficulties when Pregabalin is used for sleep issues? Maybe someone has a success strategy? Thanks!

Isn't that for fibromyalgia?