 [ Symptoms ] lump right under jaw about quarter in size showed up hr ago and is growing painfull n soft part of neck just showed up an hour ago has beeb growing since it is in the soft part between jaw n neck n the middle when feeling it it feels like a quarter sized ball it is painfull to open mouth and touching it it is a burning feeling [ Disease ] it is estimated that 2 5 of children in the u s suffer from depression depression is significantly more common in boys under the age of 10 but by age 16 girls have a greater incidence of depression bipolar disorder is more common in adolescents than in younger children bipolar disorder in children can however be more severe than in adolescents it may also co occur with or be hidden by attention deficit hyperactivity disorder adhd obsessive compulsive disorder ocd or conduct disorder cd