Yes. Yes, they are. Well, not all, but many first and second year med students. I think part of it is that when you tell people you're going to med school, everyone's like, "WOW! That must be SOOOOO HAAAAARD! You're going to work SOOO HAAARD! I could NEVER do that blah blah blah make a big fuss." Something like that. People think med school is as hard as it was maybe 50 years ago, when you actually had to, uh, go to class, and didn't get to use the internet to study and so forth. So when people get to med school and realize that, surprise, the first two years aren't quite all they are hyped to be (you can do most of the work in your PJs, etc), they feel the need to maintain the mythology, both to avoid letting people down and, let's be honest, for the street cred. Ex:
"Hi grandma, sorry I forgot to call you last week. Med school is just really hard, you know? I know you're proud, grandma, I know."
"Sorry I haven't gotten around to paying you back, dude. Just a little preoccupied with all the MED SCHOOL. I guess I should be more worried about my $15 beer debt to you than THE MOST IMPORTANT TEST I'LL EVER TAKE IN MY LIFE."
Etc.
Not that med school is easy -- it's a ton of pressure and a lot of really tough, excellent people struggle through it. I know I've struggled at times these past few years. Commisserating is a big part of keeping sane in any stressful situation, and everyone's entitled to a bitch-fest every once in awhile. But I do think a lot of the students who complain the most are the students that have the least to complain about, whereas those students who I know have incredible hardships in their lives (deaths of family members, single parenthood, etc) tend to complain the least. Go figure.