Oh Yes :? been there and (fingers crossed) finally coming out of it.
We had to resort right back to PD.Basically I laid her down,went out,counted to 10 went back in laid her down,went out counted to 10 etc.
The first night it took 50 mins,which was great as it had been taking 4 hours :shock: .
Sometime now that doesn't work so I have to stroke her hair,or sit and hold her hand,I think she now realises that I'm not going to look at her or play with her she goes off in about 10 mins.(quite rare now though)
Has she tried to climb out of the cot yet?If so,she might be ready for a big bed.(luckily Emily hasn't yet)
Also have you got a night light?Emily became scared of the dark at about 18 monthsish (is that a word?)
Can you post your routine,may be just overtired.