Does she have any more spots anywhere, or any red streaks on her fins? It could be septicimia....But how are the water params?
And does she usually do this when she's had fry, or is this a one time thing? She may be exhausted from having fry. and just resting. Perhaps turn the lights out, and give her a little while, and see what happnens?
And does she usually do this when she's had fry, or is this a one time thing? She may be exhausted from having fry. and just resting. Perhaps turn the lights out, and give her a little while, and see what happnens?