Behaving Oddly

[dortiz24]

I have a female guppy who has been actly oddly since her last birthing a couple weeks ago. She gave birth to about 15 live fish and aborted the rest. She became very thin quickly. Since then she sways her body from side to side constantly and sometimes has her tail folded down. She is eating fine. She hangs out either at the top of the tank or the bottom. I keep expecting her to die but she hasn't.

All my other fish are fine.

Any idea what's wrong with her? She wasn't like this before she gave birth. That was also her second time having babies.

 

[WILDER]

Water stats would be good in ammonia,nitrite,nitrate, and ph.
Is the fish extremely thin.
Check her anus to see if it' enlarged or red and inflamed,
What it look like when the fish goes to the toilet.
Can you see any worms prutruding from the anus.
Is she still eating.

Being extremely thin can be old age, internal parasites, fish tb, flukes, to velvet.