I wouldn't say its thrush (tho I'm no dr!), it is apparently usually white sticky and causes itching most times. But it could be a bacterial infection of another kind. After antibiotics about 9mths ago I had 'funny' coloured cm for a while but no pain itch or smell, eventually went to Dr to double check & there was no actual infection to speak of just imbalance of normal bacteria. Dr said just drink probiotic (yukult etc) &/or inner health plus. Long story short was completely normal again within a week or two. HTH :-)