It’s so hot that I’m chugging water, but it's ruining my dance practice ,,,,

Even with the AC on, the summer practice room feels like a literal sauna, I’m sweating buckets after just one set 😭 I get so thirsty that I end up chugging water, but the problem is when I dance again, my stomach makes this sloshing sound and I feel so nauseous, it completely ruins my lines ,,, My body feels so heavy that my balance falls apart during turns... Can anyone recommend Holy Grail items or hydration packets that absorb fast without bloating your stomach? I desperately need trainee sunbae tips ,,,,,,