In the early stages, you may have no osteomalacia symptoms, although signs of osteomalacia may be apparent on X-ray pictures or other diagnostic tests. As osteomalacia worsens, you may experience bone pain and muscle weakness.
The dull, aching pain associated with osteomalacia most commonly affects the lower back, pelvis, hips, legs and ribs. The pain may be worse at night, or when you're putting weight on affected bones.
Decreased muscle tone and leg weakness may cause a waddling gait and make it difficult for you to get around.
Source: http://www.mayoclinic.com