DD(13 months) has been using me as a pillow since the start of December due to a run of coughs, colds, teething canines (bottom ones cut christmas day, top ones still haven't), & her mmr jabs 5 days ago. Prior to that she slept well.
Things came to a head friday night when I spent virtually the entire night sat up in the chair holding her while she slept & the moment I lay her down she screamed. No temperature, doesnt seem poorly & is well medicated for teeth. I've just started back at work & simply can't be doing this all the time i'm exhausted & have a 5 year old to look after too.
So... decided she needs to stay in her cot instead of sleeping upright on my knee so did a version of cc. After 45 mins of crying & going in every couple of mins to reassure, she settled, then as expected woke a few times in the night but settled fairly quickly.
Screwed up early morning & cuddled her as needed her to sleep in to a decent time due to attending family party today right at usual naptime, which i do realise will have confused her big time. 
Tonight (day 2) dd settled like a dream at bedtime, but since 10pm has cried every 20-30mins ALL fucking night long. The instant I pick her up to reassure her she stops & nuzzles in to go to sleep so I've laid her down straight away & she's protested for a bit then settled. For 20 mins or so then crying again. I have been down to her at least 15 times, my longest stretch of sleep has been 30 mins & I have to get up in an hour to get ready for work & I've no idea what to do with her.
Is this normal for day 2 of CC? I didnt expect this sort of hell and frankly think sitting up cuddling her is preferable although my kankles wouldn't agree ok i knew she'd protest & wake a few times but this is something else. Bit worried i could be doing all this & what if she's actually poorly or something? I have given calpol & it seems like she's ok when i pick her up, she just seems to wants cuddling back to sleep. But if i give in now i've wasted an entire night of so called 'training' & feel I'll confuse her even more.
Sorry this is so long but i'm depairing please help!!