Anxiety on the job

Does anyone else on the job get an extreme sense of anxiety and stress about their job performance.

For some background I’m a 7 year firefighter/emt who has worked full time for 6 years without any issues.

For example on the days I’m not on suppression and have to ride an ambulance, I feel incredibly stressed and anxious, not about the workload or call volume, I typically enjoy the struggle of having several calls stack up consistently throughout the day. But about not knowing what to do on a possible call or not identifying a certain situation and not being able to relay it to my resources.

Just seeing if anyone else feels like this and if I’m being crazy or if there’s a rationale behind it.