I am ama too, although I don't put too much stock in the thought that suddenly I'm "high risk" just because I'm 37.
The big difference I've noticed is being a lot more tired, but I think that could have a lot to do with having 4 kids to take care of and a full time job, more than just being pregnant.
I have noticed that I have to be a lot more careful about my diet. If I don't eat, I feel unwell rapidly. I also seem to get more headaches, but again, that could be the stress of 4 kids and job. Luckily I've only been craving fresh fruit, lean protein, rice and fish. No weird or unhealthy cravings so far, and I haven't even been craving chocolate like I did pre-pregnancy.
Mom of 5 working full-time and waiting to go to nursing school! Whew! I need a nap!