Side cramps after swim?

My daughter is asking me why she gets such bad side stitches while running, but only after her brutal masters swims. She waited 45 mins this last time and still got a horrible one.
She is 24 and they have put her with some fast 12-14 yr olds, and they are swimming some brutal workouts. 3000 kick? 4200 backstroke?

Is it nutrition? stretching?

Is it a cramp or a stitch?? Big difference…A stomach cramp doubles you over, she would have to get out of the water and stretch backwards… That could be an electrolyte/fluid problem. Causes of stitches are more problematic. I usually have gotten them in the past when I do not warm up enough, and then go out really hard in a workout or race. Once you get one of those, you just have to slow down, and belly breath for awhile. It may or may not go away…I’m not sure if they know what causes stitches, maybe there has been some new research on them…

Now that you mention it, I think she is doing some hard speedwork at a track at the school where the pool is. Some older guy is super fast, and is coaching her a little.

I notice I get stitches during races where Im pushing hard. Could be it. Thanks