I've posted before about my LO sleep. It has always been tricky. She self settles for naps and bedtime in her cot. Goes down awake and we have an established pre sleep routine and she will usually take herself off on 5-10 mins.
HOWEVER, she was never really able to resettle after a sleep cycle so was waking every 45 mins or so for naps and every 2-3 hours overnight. After 6 months the odd day nap started lengthening and we resorted to some sleep training at night and introduced a dream feed. Started to see her doing longer stretches and sleeping 7-6ish with dream feed and a feed at 3am ish.
She then had a bug. High temperature for 4 days. I ended up doing lots of contact naps in the day and staying with her at night.
2 weeks later and she is still going to sleep happily by herself to start but has woken screaming hysterically every 90 minutes throughout the night. And I mean screaming. It's a cry we've not experienced before. When we were sure whe was over the bug we tried to do sleep training intervals again - going in to reassure her at set times but not picking out of cot. But the crying kept escalating and I really struggle with it.
Last night she wouldn't even have a comfort boob feed (she is ebf) and ended up in bed with us after hardly any sleep from 1-4. Co-sleeping isn't something we want to pursue.
What could be going on here and how do we navigate through it?!