You have to get away from somewhere. Maybe it's a meeting or maybe a class at school. Whatever it is, a stomachache might help. No one can prove that you don't have the symptoms of a stomach ache. Just show the symptoms and people will have to believe you, as long as you do your part right.
Steps
Part 1 of 3: Demonstrate Stomach Pain Symptoms

Step 1. Talk about your symptoms
Talk about how much your stomach hurts. Then say you've had diarrhea and vomited. The other person will not be able to prove that you have had these symptoms unless they have been close enough to observe your actions.
- If you are going to talk to your parents, you could say, “I have had diarrhea, and I have vomited. I feel really sick. "
- If you are going to talk to someone who is not that close, you could say, “I've had stomach problems today. I feel really bad”.

Step 2. Avoid eating or drinking
When you're trying to prove you have a stomachache, gobbling down a plate of eggs and bacon won't help your cause. Instead, you can say that you don't want to eat because your stomach hurts.

Step 3. Put your hands on your stomach
When you have a stomachache, you usually can't resist placing your hands on it or gently rubbing it. It is an unconscious attempt to relieve pain. When you want to fake a stomachache, try rubbing your belly like it hurts.
You can also add a few light moans from time to time. However, if you're at work, complaining might be too much

Step 4. Run to the bathroom
While you can't fake things like diarrhea or vomiting, you can fake going to the bathroom. Squeeze your stomach or cover your mouth, and then run to the bathroom. Try making gagging noises or even using a phone to play fake noises. Go to the bathroom several times in a short period, such as 2-3 over the course of an hour.
At work, just running to the bathroom every now and then should be enough
Part 2 of 3: Faking Other Symptoms

Step 1. Fake a fever
Usually a fever will be accompanied by a stomachache, so you can try faking it to make your act more believable. For example, you can warm up your body temperature by placing a warm towel over your face or completely covering your head with a blanket for a few minutes.
You can also warm a thermometer by placing it in warm water or having a hot drink before having your temperature taken in your mouth

Step 2. Try adding the chills
Usually when you have a stomachache, you may have chills that accompany stomach problems, particularly if you have vomited. You could try to shake or hide under a blanket like you can't get warm.
If you're on the street somewhere, try putting on a sweater or rubbing your arms like you can't get warm

Step 3. Act like you have no energy
A stomach problem can really wear you out, so you have to see yourself that way. Act like you can barely move and getting up is exhausting. You will have to maintain your performance because if you suddenly have an energy discharge, other people may be suspicious.
Part 3 of 3: Make Your Story Believable

Step 1. Stick to a story
If you say your stomach hurts in one area, don't let the pain move. If you start to change your story, people will think that you are not telling the truth.

Step 2. Ask if there is anything for your stomach ache
One way to make your story more credible is to try to receive medication. You could say “Is there something for stomach pain? I don't feel very good. I feel like I'm going to throw up”.
At work, you could take over-the-counter stomach pain pills or ask your co-workers if they have some

Step 3. Save time
Sometimes you just have to buy enough time to finish what you don't want to do. I mean, maybe you just have to stop long enough to miss the bus or avoid the start of a boring dinner. Then you will be free at home.
However, don't be too hasty. You may still have to do what you wanted to get out, but you'll just be late

Step 4. Don't overdo it
A stomach ache is one thing. It can get you out of school or work. However, you don't want something fake to be so serious that they send you to the hospital. For example, sharp pains in the lower right abdomen can indicate appendicitis, which will definitely earn you a trip to the hospital.
Advice
- Be careful about your improvement. Don't wake up the next morning like nothing happened. Say you feel much better but not okay.
- If someone asks you "Are you lying to me?" Just say "Why would I?"