question: Williams syndrome (Symptoms): Symptoms of Williams syndrome are:     - Delayed speech that may later turn into strong speaking ability and strong learning by hearing   - Developmental delay   - Easily distracted, attention deficit disorder (ADD)   - Feeding problems including colic, reflux, and vomiting   - Inward bend of the small finger   - Learning disorders   - Mild to moderate intellectual disability   - Personality traits including being very friendly, trusting strangers, fearing loud sounds or physical contact, and being interested in music   - Short, compared to the rest of the person's family   - Sunken chest     The face and mouth of someone with Williams syndrome may show:     - A flattened nasal bridge with small upturned nose   - Long ridges in the skin that run from the nose to the upper lip   - Prominent lips with an open mouth   - Skin that covers the inner corner of the eye   - Partially missing teeth, defective tooth enamel, or small, widely spaced teeth