### Patient: Doctor, I've been experiencing palpitations, insomnia, and irregular heartbeat. I also feel very depressed and sometimes even psychotic. What could be causing all these symptoms? 
### Doctor: Based on what you've told me, it seems like you might have Panic Disorder. This can cause palpitations, irregular heartbeat, insomnia, and also depressive or psychotic symptoms. We should run some tests to confirm, but in the meantime, I suggest you take some deep breaths and try to relax.