Is the goat a fast eater?
Is it hay or grain when she is doing this? No, she is not currently eating hay but they do munch on it through the day.
Is it after she runs or at random? random
Did she get into anything poisonous such as mold or a plant? not that I know of
Is she drooling at the same time? no
Also... some Goats ...when regurgitating..will make a weird sound...while spitting up cud to chew it...is their any wods in the cheek when you hear this? I am not sure if there are any wods. I will have to check. It is so random.
Goats hold the wod in their cheek for a small period of time....but you should see it ....if you are watching ...when that sounds happens... I would observe... what she is doing at the time she coughs....
Also... feel down her throat for any lump feeling area's....she may have hay stuck in there... go from under the neck down... if you feel something odd ...you may have to get a vet to dislodge it ....
Also... do you have a lot of spring blooms around...might be allergies as well....