Let me just say I have had sudden bloating before and that is uncomfortable! Salt does it for me. Eat anything salty? Good questions by anniebrooke. How are you now? There are some wacky things known to cause bloating. They include drinking from a straw! Eating kale! Ate apple! Chewed gum! Ate beans or bean dip! You were hungry and ate too fast!
However, are you nauseated or vomited? That can be a sign of a bowel obstruction. My mother had an obstruction that turned into a full on emergency and within a short time she went from normal to looking 9 months pregnant. That is a 911 emergency so please get immediate care if you are nauseated or vomiting with this. Here's an article to help combat it. https://www.healthline.com/nutrition/11-proven-ways-to-reduce-bloating
Are you feeling any better yet? Is this gone?
Also, a friend of mine once got an ovarian cyst that became as big as a cantaloupe. Do you have any pain, or is it just bloat?
Hm. Well, oolong tea wouldn't do it. Anything about salt? Like soy sauce in snack form? (We just got these soy-sauce covered crunchy snacks, for example.) Are you bloated all over (like fingers, face, feet) or just in the lower stomach region?