My son is a 32 weeker, failed newborn hearing test. An ABR test (they hook up monitors to head and monitor reaction of sound to brain waves) showed mild-mod loss in one ear. At 22 mos he is speech delayed, has speech therapy every other week, had a repeat ABR test done under sedation and showed the loss in both ears. He had hearing aid molds done and will have them soon. I suggest you contact an Audiologist to have an ABR test done under sedation, this is the best measure to see if there is a hearing issue. They can also do a BEAR test where the child wears headphones, sits in a both on your lap and reacts to sound by looking at boxes that light up. The ABR is the best measure. I would contact your local Early Intervention programs, they are state funded and free, to find out how to get an eval done regarding walking and talking. I worried about these things too. Michael was fully walking by 17/18 mos and did not need any therapy. The eval would also look at development issues etc. You can go to the states social services page or google it. YOur pedi will only refer you out they won't really act or tell you what you need.