To dream of sewing signifies that you are mending the past, forgiving someone, making amends for transgressions, as well as stitching together relationships that have become frayed. Also, dreams of sewing denote your ability to manifest the things in life that you desire and require. You are realizing that you reap what you sew. See Seamstress.... Strangest Dream Explanations
To dream that you have stitches on your body, represents your responsibility in keeping a situation or relationship together. You may fear that this situation or relationship is falling apart and needs to be mended. Consider also the symbolism of where the stitches are on your body for additional clues.
To dream that you are stitching up somebody else, indicates that you need to take extra care in adding your personal touch to some situation.... My Dream Interpretation