Im getting really bad upper stomach pain when i cough or atand up after sitting any ideas please really hurting x
Have you had any problems with heartburn before? Too much stomach acid might be one of the causes for strong upper abdominal pain. But, since your pain gets worse when you're coughing or moving, it sounds more like it might be caused by upper abdominal muscle injury. If you had any relatively recent injuries that you can remember, it even might be cracked rib that's contributing to the whole situation.
Either way, I'd recommend you to see a doctor and have an x-ray done to see if your ribs and lungs are OK, and to look for other possible causes for your pain,
Wish you all the best,