Because the bubbles will cause gas, induce vomiting, or increase stomach acids.
From past experiences it has almost always upset my stomach in a bad way.
MSG
Yes
The citrus acids combine with the stomach acids and calm them down while the bubbliness makes you feel good. The carbonation (bubliness) is very comforting to you stomach when upset and can act as a pain reliever.
it depends, if you work TOO hard you will get an upset stomach, along with if you are really dehydrated you may feel nauseas...
In most cases, patients with fibromyalgia are prescribed anti-inflammatory drugs. It is those drugs that cause the stomach upset.
Unlikely
eating an iron
eating too much or stress
The sap can cause skin irritations and the plant can cause stomach upset if ingested
Changing your diet suddenly can cause irregularities in you stomach or intestines