I tried calpol this afternoon and it didn't make any difference.
She's also not good at sleeping in my arms - both my children are only really happy sleeping in the dark in their cot, I've almost never managed to cuddle up on the sofa with one of them sleeping on me.
Neither of them have ever slept in the car, sling, pushchair or anywhere else for that matter...
Have I given her the wrong message somehow? How can I when she's been sleeping wonderfully for a week?
She's a little baby and they have a horrible habit of doing things just because. There often isn't any rhyme or reason as to why they do a particular thing which makes it incredibly difficult for us parents to deal with it, especially when we're hugely sleep deprived.
DS2 was similar for only sleeping in his cot, in some ways it's great but when they get into these funny phases it makes life very tricky.