What could it mean by getting a sharp pain in your right lower abdomin that shoots to your left arm? Pain lasted approximately 2 minutes. I'm a 20 year old female.

That's an unusual path of pain, crossing over the middle of the body, and over a long distance.

If if only happened once, let it go.
If more than once, or if you have any sort of medical history, call your doctor's office in the morning. Going to an ER on a Sunday is just not going to be much help (again - unless you have some history).

A few COMMON concerns lower R might be appendicitis, ovarian cyst, or ectopic pregnancy.
Left arm in anyone ranges anywhere from muscle cramp or pinched nerve all the way to heart attack. Absolutely no way to know, but the odds of heart attack in a 20 year old are low, of course.

Here is a picture of how some pain can travel that far, because the heart is on the left, then branches out. An abdominal aneurism, for instance, might send pain that far. But we all get unusual pains like this at times, from some nerve hitting another, and 'referring' pain to other nerves, and the typical doctor response is 'wait and see.' Pain from an abdominal aneurism is generally excruciating. Appendicitis, perhaps, could hit a nerve that goes to a major blood vessel.

Or - it could all be NOTHING - just something hit a nerve.

I wrote all this just to provide some knowledge, certainly not to diagnose! No one online can answer your question.

https://stanfordhealthcare.org/conte...insanatomy.gif