I had my first sparring class back in April... I can't believe I left it this long to go back to a sparring class, but tonight I did my second. I didn't run into this the first time, but tonight a couple of times I felt sick to my stomach, and it seemed to be from swallowing so much saliva. The mouth guard makes me salivate, and it has nowhere to go but down. Pretty soon I'm feeling sick to my stomach. Some of that might just be exhaustion, but it felt like the saliva that was bothering me. Has anyone else had this problem and found a way around it? Do you just get used to it?