So tired, I have been tired for for over 3 months or for a few years, depends on how I look at it.
When I was pregnant with BBJ1, I was exhausted, I couldn't get enough sleep. Spent a year at home with BBJ1 who slept through the night maybe 4 times. Spent a year back at work, taking care of BBJ1 and pregnant with BBJ2 for 9 months. The second pregnancy was not as exhausting as the first, but still tiring. For the last 8 months taking care of 2 little guys full time.
For the last 3.5 months BBJ2 has not slept through the night. For the last 2 or 3 months BBJ1 hasn't napped (he naps if Daddy is home and puts him down, but that is it), which means that I cannot take a nap during the day to catch up. BBJ2 often sleeps for 45 min - 1hour at a time from about 8pm until 2pm, at that point I give up trying to put him back in his crib and take him to bed with me. I have nothing against sleeping with your baby, it can be quite beneficial for everyone if everyone is happy with it, but I'm not. I find that when the baby is in bed with me I don't sleep as well, I wake up frequently to check on him, make sure I have rolled on him or covered his face with the blankets, etc.
On top of BBJ2's sleeping pattern, I am trying to express milk to prepare for my upcoming trip to London. I find that I need to wait about an hour after nursing to get a good amount of milk. So every time I do get him down, I wait to try to pump instead of going to bed. Very often he wakes up just before I start or while I am pumping. BBJ2 does not have a schedule for nursing or sleeping during the day. I'm nervous to pump during the day unless he is napping in the stroller (almost guaranteed that he will sleep for about 3 hours if he is in the stroller and we go), I never know when he is going to need to nurse and don't want to be empty.
So not near enough sleep + nursing + pumping + no chance to nap + playing with the boys + pushing a stroller with 2 kids in it (or wearing one in a carrier) + + + + = one very knackered mama.