I have runners stitch yet i do not run. how do i relieve this?

Several options: Assuming you are exercising in some form, employ these strategies: hydrate well before exercising, as dehydration may be cause; alter your breathing techniques, with a focus on deep exhalation; improve your fitness, as those out of shape tend to have more side stitches; begin the exercise gradually with slow-warm-up; decrease the intensity of your exercise. If not improving, see your sports doc!