final straw, dd just wet my bed.

[ilovetochat]

dd is 2.7 and potty trained 10 months ago, over the last 2weeks she has started having accidents, i noticed she was teething 3 molars so ignored and changed her, i have tried a tick chart again with the promise of choc buttons if she gets all ticks all day, she has managed 1 day dry.
most accidents are 4.30 onwards, she has had no accidents when out, only at our house, today she has had 4 accidents all since 5pm, the finale being in my bed where she just lay there saying i want a wee, this was 20 mins since the last flood downstairs.

i need help.
do i need to reward each wee with a button (never did this when training)?
do i ignore? (hard as she is running out of clothes)
do i naughty step her? (i know i shouldnt)
do i put her in nappies?

thank you all for taking time to reply.
well dd has only had 1 small accident today and 1 yesterday so not so bad.
ive just concentrated on having lots of fun and cuddles and took her to the toilet regularly under the pretence that i need to go and when she had an accident she took her trousers and pants off and brought them to me and told me she had weed so i just reminded her to go to toilet next time and she agreed so we are both doing better.
i know im a bit of a stress head but am trying to be calm.
she is my only 1 but has recently started saying she is a baby and eating with her fingers and asking to be fed and lying on my lap like a baby so maybe she wants to be a baby for some reason. i have told her she is still my baby.