2cm...

Was in the hospital last night with pains which ended up being food poisoning. But whilst in the I got examined and told I was 2cm and in 'slow labour'
Was made out that things will happen in the next 48 hours especially now I'd been examined but had absolutely nothing today, just a little uncomfortable pressure but no pain. 
Did anyone have this at 2cm then suddenly start labour? Feel like it's never going to happen