My 9 month old has recently started waking up screaming in the early evening - often an hour or two after going to bed. His night time sleep is still fine (thankfully) but I'm puzzled as to what is causing him to wake so distressed. He's always been a great sleeper, self settling and sleeping through from 7 weeks. I don't think it's teething as he'll settle again with me popping in to shush 2/3 times.
Is it just the beginning of separation anxiety? The poor lamb seems really upset.