Horse with massivly fluctuating belly size - wind?

[Beatrice5]

My mare has a very large belly that goes up and down hugely. She has a 5 month old foal at foot and so therefore I wonder if she has extra belly capacity beacuse of having foaled. I have never had a horse who's belly is just so balloon like. I know they can get a grass belly but this is ridiculous. Some days she has about 10 inches eather side of her shoulders other days she is only an inch or two each side? She is regularly wormed, on relatively poor pasture by day and onto the good stuff at night feed Biotal equine gold with her feed balancer and small handful of chaff. Help? Is this normal?

Her general condition is okay but she hasn't any fat on her neck, shoulders, hips and bum if you took the belly out the equation you would score her as good but on the leaner side of good.

I heard someone mention a sand belly but we are on clay but what is a sand belly? What else could cause her to be so big bellied? As I said I worm regularly and worm count but I know worm count only does some and not all worms but I do Ivermectin her in the spring and do poo pick and rotate my pasture?

Little gelding and foal are totally normal and not pot bellied at all.

 

[italylyns]

Not sure if it helps but my gelding has alot of wind/large belly and someone suggested pink powder as it helps the gut and the digestion of food properly.

I have only used it now for a couple of days so not sure if it works but worth a try!