Thank you for writing. You are asking important questions. But we are not medical doctors so are not in a position to answer. I can only suggest that if you aren’t satisfied with the answers your psychiatrist is giving you, you seek a second psychiatrist’s opinion. I also suggest that you talk to your medical doctor. It’s possible your symptoms are a side effect of the Latuda. It’s also possible that you have coincidentally developed a medical problem that has nothing to do with the medication.
Do pursue this further. If it is a side effect of the Latuda, you will need to evaluate whether the benefit you are getting from it is worth the discomfort. If there is a medical issue, you need to know — and learn what to do.
I wish you well.