Manchester Chiropractor. Dr. John Kosinski provides Headache, Low Back, Children, Prenatal Care, Female Issues, Neck Pain, Bulging Disc, back pain relief, neck pain relief to the following locations: Manchester, NH, Bedford. Manchester, NH Chiropractor providing Headache, Low Back, Children, Prenatal Care, Female Issues, Neck Pain, Bulging Disc in Manchester, Manchester, NH, Bedford, New Hampshire.