You mixed your pre-workout, drank it 20 minutes before your run, and now you're dealing with a heavy, bloated stomach instead of feeling ready to go.
A lot of pre-workout drinks are dense — sweeteners, carbonation, and a large volume of liquid all hitting your stomach at once, right before you ask your body to run. Your stomach has to process that liquid load while you're also moving, which is a common recipe for cramping or bloating, especially on an empty stomach.
The volume is really the issue, not just what's in it. Swapping a big liquid dose for a smaller, drier format avoids putting all that volume into your stomach right before you move.
That's the gap Neuchu fills for a lot of runners — a fixed 50mg of caffeine you chew rather than drink, so there's no liquid load before you head out. You can find it here.