Anything going on in the left side, is always a good reason for concern that where your heart is. If its sharp pain, located front & center in your chest, or takes your breath away, get to a Dr or emergency room & have it checked out.
If the pain is low & in the back just above the belt line, It could be your kidneys. If you drink a lot of tea, coffee or soda & no water, just stop those for a few days & drink only & lots of water for 2 days & see if that flushes the kidneys. That is very common, specially in young people.
THere are a few possible causes for this, if it's not a kidney problem, it could be muscle strain, pullled muscle, sciatcia, bulgind or herniated disc, it really depends on your sumptoms. You should get checked by a doctor. Until then you can use the website in the resource here, to help diagnose yourself, according to your symptoms.
You could have a slipt disc in your lower back, they are very painful.
Back pain lower right side causes are: Lower back and kidney disorders.
appendix or kidney infection.
What causes pain in upper left side of the belly
Varies. Could be a sprain along you sciatic nerve.
It is possible that pain in the lower left quadrant of your back is caused by a kidney stone, since kidneys are located on both the left and the right of the lower torso. But there are other possible causes as well. Many things can cause pain.
hip problems maybe or lower back problems go to ur local doctor and ask him or her
so yes, stress can cause lower abdominal pain on the right or the left stress caused me to have pain on the lower left abdominal it could be the stress or gas that causes the pain
One can find information about the causes of lower back pain from the following sites; Chronic pain site, WebMD, Mayo clinic, Bupa, Health guide, and NHS.
sciatica
Liver
Pain in lower right and/or left sides.