White Cloud Swollen Belly

I don't like the look of that 

I would separate her if possible and watch her until just before you go away. If she is still alive, you will then need to make the decision whether to leave her there or put her down before you leave 

The swelling seems to have gone down quite a bit. Yesterday the swelling was such that from one side you could see what appeared to be a vent.  It's straighter this morning and the vent hole is no longer showing.She is still swimming OK and when I put a crushed up pea in the water she actually went for  a bit of that.  I'm going away for a week on Friday and was going to get a neighbour to feed a couple of times. I'm out today so will see what she is like tomorrow and if she is still showing sign of swelling I shall isolate her in the quarantine tank so my neighbour won't have as much trouble fishing her out if she dies.
I have another WCMM which is also very swollen round the belly area, a more extreme "V" than usual so I~ just hope she doesn't go the same way.

I have a few female WCMM and Glowlight Danios and they all have a V shape compared to the males.
It's just that this week I noticed this particular WCMM had an extreme shape with this gaping vent. She does seem better today although still a little "droopy" underneath. She's active enough