Ok, dd1 is 4.3
Has been reliably and consistently dry since about 3.4-5m (sometimes wets if poorly etc)
For the last week or so has been wetting in the day. Not 'full-on' accidents, but leaving it too late, wet enough for knickers to have to be changed. She realises and goes to the toilet.
I'm pretty sure it's not a UTI (she's had one before) as it's only happening once a day, the other day twice. She has had periods of regression before, whilst training, but not for AGES.
What approach to take?
Ignore?
Reward chart?
'Punishment'? (ie toy-removal)
Am stuck, and thought all this malarkey was over long ago!!!