The following symptoms indicate directional confusion: 1  The dyslexic may reverse letters like b and d, or p and q, either when reading or writing. 2  He may invert letters, reading or writing n as u, m as w, d as q, p as b, f as t.3  He may read or write words like no for on, rat for tar, won for now, saw for was.he following symptoms indicate directional confusion: 1  The dyslexic may reverse letters like b and d, or p and q, either when reading or writing. 2  He may invert letters, reading or writing n as u, m as w, d as q, p as b, f as t. 3  He may read or write words like no for on, rat for tar, won for now, saw for was.