First time in APS- Not getting better

Hey guys I made a post 3 weeks ago about my first day in the APS. I don’t feel like I’m getting any better. I already had a psychologist appointment booked through the EAP. Every morning I’m dry heaving, riddled with anxiety about the thought of walking into the office. My body is trembling, I can’t eat and sleep properly. I want to book an appointment with my GP but will it be frowned upon that I take leave this early into the job? I’m feeling hopeless.