I have a burning/sharp pain in the right upper part of my stomach. it comes and goes and only lasts for a second or two. it has been a day. any ideas?

Yes: If you are healthy and without toxic habits such as excessive alcohol or tobacco use, these brief episodes of sharp, burning pain likely represent gas or muscle spasm. The organs in the upper right part of your belly include your liver and gallbladder, which are less likely to cause trouble in someone your age unless you are markedly overweight. Increasing water intake may help if it's spasm.

Gastric irriation: Can vary from mild irriation or upset stomach to GERD, gastritis, liver, pancreas or gallbladder disease: the fact that this is so transient suggests nothing specific.