What To Do If Side Effects Persist Even After Stopping Risperdal?

Goodmorning, I’m 29 years old and last year for a DAP my psychiatrist prescribed to me Sereupin 30 mg every day; last mounth for the resistence of my phobic state He prescribed me Risperdal 4mg/die but after two days that I assumed risperidone I feeled sleepiness, muffled, blurred vision, headache, distorted distances and without forces.
I contacted my psychiatrist that said me my feelings were side effects of risperdal and He recommended me to stop the therapy with risperdal; so I stopped the therapy but now after a month I feel the same sensations like two day after the therapy with risperdal.
My psychiatrist said me side effects can remain for different time after a patient stops the treatment with risperdal.
Can risperdal have damaged me permanently?
Why I feel 24/24 headache, sleepiness, muffled, blurred vision, distorted distances, sting to my eye and without forces?
Are the side effects of risperdal reversible?
Thanks