7.5 month old DD 2 days ago became suddenly very unsettled, needy, and stopped sleeping as well. She previously self settled nearly instantly for all naps (either 2 or 3 a day, adding up to 3hr total) and was a happy little baby. Now she just won’t go to sleep with any method (in her cot, on me, next to me). She just cries.
At night she usually (not intentionally on my part) feeds to sleep, and has been staying asleep from 7-3ish and then up screaming and unsettled until morning.
I’m trying calpol, ambesol, nelson powder, bickiepegs...
I don’t technically have proof that it’s teething but she’s putting everything in her mouth even more, dribbling loads, and showing most signs.
I’m only 2 days in and struggling. 
Anyway, I don’t even know why I typed all that out, I only wanted to ask for peoples experiences of teething, if they had a similar sudden change in behaviour, and when it got better.
Thank you 