Verified answer

There's a few things I would recommend. First, have you seen your doctor recently about this condition? You mentioned you had an endoscopy done a year ago - was there any other tests performed? Where is the pain located?

Something that is often mistaken for stomach pain/cramps is gallbladder pain due to gallstones. Symptoms can be very frequent or very rare, only occurring a few times per year in some people. The pain can be so intense that you can hardly move or find comfort in ANY position that you put your body in. If it is gallbladder pain, you will likely feel the pain primarily in your upper-right abdomen, and sometimes it can radiate around to your back and below your right shoulder blade as well - however, it will primarily be the upper-right abdomen. It is also very tender and painful to touch as well. During an attack, pain can last for a 30 minutes to several hours, and they are usually brought on after eating a fatty meal although this is NOT always the case.

It can also be pancreatitis, which produces symptoms similar to those mentioned above for gallbladder pain.

I suggest seeing your doctor again and explain exactly where and how the pain feels - most doctors will suspect gallbladder issues/gallstones if the pain is described like above. You can also suggest it if you feel that your symptoms match those similar to gallbladder pain. Your doctor will then order an ultrasound of your right-upper-quadrant of the abdomen which will show whether you have stones or inflammation of the gallbladder.

You can try taking pain relievers found in drug stores to see if there is any help when you have the pain - if not, you will likely need some prescription pain medications to help control attacks until the issue is resolved and addressed.

Good luck, and I hope you can resolve this soon!

Edit: Also, I just wanted to add that pain is personal and only you know the amount of pain you are in, so don't let anybody tell you that whatever you're experiencing is no big deal, because they do not know what you are feeling. If your mom tells you it isn't serious and to not worry about it you need to go on your own to see your doctor as nobody should have to suffer to the point of discomfort that you are in and cannot walk or move without keeling over. :)