My 6 month old has slept amazingly and the whole night through from less than 2 months old. The past three nights however have been difficult and she's only had 2 hours sleep tonight. When she isn't sleeping, she's crying and she'll only stop if I'm holding her but I'm falling asleep so can't do that anymore 
I've given her milk, calpol, teething gel and nothing is working. I'm exhausted. I can't deal with the screaming anymore 