I am about at the end of my tether with DS (2.5).
He was off nursery yesterday with a temperature, so DH took the morning off to look after him whilst I came into work, and apparently he was really good, well behaved etc. Then I got home, and he started whining at me, inserting a million letters into the word 'mummy' ('mmmmuuuuuuuummmmmmeeeeeeeeeeeeeee' whine whine whine) and generally being a pain. (I should add, the temp disappeared mircaulously as I left the house - apparently I was the same as a toddler and had the odd afternoon of high fever which disappeared after a dose of calpol)
And at dinner he kept spitting his food at me, then screaming when I removed it from him. Then in the bath, he peed into his hair washing jug and screamed blue murder when I cruelly wouldn't let him drink it 
. Finally I got him out of the bath and he was kicking and screaming and going 'go WAY mummy, want DADDY'. So I ended up doing the dishes and crying whilst DH dealt with hideous-child.
He has always been a crappy sleeper, but last august-october, he started going through the night several nights a week, and suddenly DH and I felt almost human again, and stupidly decided to try for DC2. Who is now due in 3 months.
Unfortunately, I get terrible insomnia in pregnancy (got it towards the end with DS, this time it has been from 6 weeks pg), so have been getting (on a good night) 2-3 hours sleep. That is on nights where DS doesn't wake up. for the past fortnight, he has been sleeping in 1 hour stretches, then waking up and pratting about, or crying, and finally going back to sleep about 30 minutes before DH and I need to get up for work.
We are both just broken with exhaustion, and seem to have forgotten how to sleep.
Anyway, this morning I heard that my aunt has died (after a very short battle with a rare cancer), and so was obviously upset. DH had to leave the house early for work, and DS was whining at me again - started howling the minute daddy left, and kept it up all the way to nursery. then he wanted me to carry him from the car park to nursery, and I know I should have done, but I lost my temper with him and refused. this was partly due to SPD as well, I should add. carrying a 2 yo does not exactly soothe my pelvis. So I have left my poor son howling at nursery, and am sitting in the office trying to work, but barely focusing on the screen.
I am so sick of these disturbed nights. DS can go to bed on his own, but will not slef settle during the night, and nothing we can do to make him sefl settle. He just screams immediately he opnes his eyes, and will make himself sick if we don't get there quickly.
and I'm sick of the whining.
I'm used to being number 2 parent, but the screaming at me to go away is tiresome.
and I'm so so tired.
please tell me it will get better one day? and I haven't damaged him for life by being short tempered with him? and that I can sedate him overnight