Tardive or withdrawal akathesia

Has anyone healed from tardive, withdrawal or chronic akathesia? Or restless leg syndrome as apparently that's similar?

My story:
I was on celexa for 4 years, withdrew and had withdrawal symptoms (mainly PGAD) for 2 and a half years, they mostly healed but 9 months after it significantly improved, I smoked weed for 5 days and it all came back. I also started getting mental akathesia. 3 months later everything calmed down a lot but I was hit with sudden physical akathesia and worsening of mental akathesia. It's been almost 3 months since then (and almost 6 months since the weed) and there's no improvement. I never had akathesia before, even during my citalopram withdrawal.