I am confused by what you mean when you say, "While all that is true, I'm just not sure that it sounds all that convincing?" Who are you trying to convince?
I say it's nice to shadow, but you get a real gut perspective when you work A LOT with resident physicians. To me it's where the rubber meets the road. Also, just eavesdrop on the med school students forum to get a tiny taste of their stress levels and perspectives. Then get with some attending docs in various areas--and eavesdrop on the ones here at SDN. Note: Try to limit or avoid commenting. What you may get with ms's, residents, or attendings on SDN is, "You're not where we are, so sit down and be quiet." They may do this is in the nicest possible way--or not. And those forums are for them, so, they can feel that way if they want. All they really are saying is if your aren't "there" yet, how can you relate?" Seems fair. So I try not to bother them, but I do try to glean some insight from "listening in" on their discussions from time to time.
Best of all for me has been working with a lot residents and fellows, etc over the years. I truly feel for the surgical residents--and IM and CCM can have it hard too--although OB isn't always fun either. I watch, talk with them, work with them, listen and learn so to speak. There is a typical stress pattern that I"ve seen over the years. It's a stressful, hard, and long road. Way it is.
Good luck.