Final answer:
A patient with schizophrenia feeling the constant need to move is likely experiencing akathisia, usually treated with beta-blockers.
Step-by-step explanation:
If a patient being treated for schizophrenia reports feeling like they always have to move, the most likely diagnosis is akathisia.
This condition is characterized by a feeling of inner restlessness and a compelling need to be in constant motion, often as a side effect of antipsychotics which block dopamine receptors.
The typical treatment for akathisia involves the use of beta-blockers, which can help mitigate these symptoms.