I'm only 28.5 weeks, but so far, I can't complain too much!
Had some terrible fatigue and morning sickness for the second and third month, but by week 16-17, I had it kicked. I personally think I just wasn't eating enough, because when I could eat, I felt good! (Also was having some ketones in my urine...that is no longer a problem, as I like food again!) Also had crazy food aversion too, nothing ever sounded good, and leafy greens made me gag. Haha.
As a result, I didn't start gaining any weight until I was 16 weeks (in fact, I lost 10 pounds in the second month). From there, I have gained a healthy 30 pounds.
Once I kicked the morning sickness and fatigue, I felt awesome, I hardly even felt pregnant, and I didn't even have a visible bump until week 18. I wasn't the least bit uncomfortable until maybe two weeks ago, and now my uterus and babies are crowding me. Just a bit of trouble getting comfortable on a couch or in bed, though. Also very uncomfortable to bend over, haha.
As far as complications? Zero. I think my blood pressure randomly goes up sometimes, but I just sit or lay down until it goes away completely. (I took a 35 minute break at work today, oops.
Doc wanted me to go on leave at 28 weeks, but I told him I felt pretty good still, so I just cut down my hours to 20-24 a week (as well as shorter shifts), and I'm planning on going on leave at 32 weeks. My coworkers keep telling me, Oh, you're going to be on bed rest I bet! And crap like that. I just give them an annoyed look and say, "Umm...no."