My dd is 18 1/2 months and has always napped and slept well. She normally sleeps 2 to 2.5 hours from 11 or 11.30 and goes down at 7.30/8. Then on Tuesday she refused the nap screaming. I took her for a short walk and transferred fine - rest of week was normal until yesterday. Same thing with the nap and then bed time but walk didn't work - she ended up with us and eventually fell asleep about 10!
Today she went down for nap but not without some screaming and now she is wide awake 1 bedtime having been a disaster.
She is teething but not acting in pain, but she is clingy as anything.
I can't cope with sleep issues :(