Another tired one signing in here!
DD2 is nine months old and the last month has honestly been hell
when she was a newborn I was so grateful that she would go three hours between feeds, I really got my hopes up. Then when she was a few months old she would usually just wake once in the night and would occasionally sleep through (11 hours) so then I really got my hopes up.
I thought I was all prepared. DD1 (who is 3) was terrible to begin with, then slowly slowly started getting better. She never slept through 'til she was 16 months so I thought I'd be able to cope; but what I forgot was she would sleep 5-6 hours, wake for 5 minutes for a feed, then sleep for another 4-5 hours. Really not a hardship 
DD2 was poorly about a month ago, had bronchiolitis. It really set her back and she still has a wheeze. She is also full of cold and teething (seems to be a common theme here!) and honestly everytime she coughs I die a little inside because I know she's going to wake up.
< and on cue, she's just coughed and woken up crying for the fifth time in two hours...>
i have no energy to deal with DD1 in the mornings, I whisper "shut the hell up" into DD2's ear in the night. I truly am horrible when I have no sleep 