<s>[INST] hi I have had a stitch like feeling on my left side of stomach for a week...... i am a bit concerned of what it could be..... its not painful just mild stitch feeling..... its constantly there..... sometimes more obviously there than other times.... but always there...should i go get it checked out.....lower back slightly tender.... not sore just tender. [/INST] Hi welcome to Chat Doctor forum.  Thanks for calling, Chat Doctor. Forum.  You had a stitch like feeling on the left side of stomach, lower back, slightly tender.  It appears to be the small stone in the urinary tract, probably at the end of writer so causing pain in the back.  Other causes are hernia of a small portion of the gut or my sentry. You may need to have M.R.I. for confirmation.  I suggest you to consult a surgeon for diagnosis and treatment. And to avoid strangulation of hernia.  Wishing for a quick and complete recovery.  Best regards. </s>