Suffering from worsening symptoms after a period of exercise can be unpleasant, but is completely harmless. The reason behind it is that IQoro creates a pressure change inside the body.
The change in pressure causes the stomach acid to be pushed up into the esophagus even more easily, while your muscles have not yet become strong enough to hold the stomach in place.
When this happens, it is important to continue treatment, as strengthened muscles will counteract your symptoms in the long run.