1 Year Old's Chest Congestion

[Faye121]

My son is 13 months old with (in my opinion) excessive chest congestion that has lasted 8+ weeks.  He got his first bad cold late December, and while all other cold/flu symptoms have cleared, the chest congestion has endured and has intensified over last 10 days.  It does not appear to be debilitating for him, but we can 'hear' him walking across the room by the gurgling and wheezing on his chest.  When we put our hands on his upper back, we can also feel (through his clothes) congestion rumbling in his lungs when he breathes.  By the duration of the condition, we have growing concerns that it could be something else.  Other environmental factors - recent weaning off breast milk, 1-year immunizations, flu shot 12 weeks ago, he threw up 2 days ago & the only different food he had was yoghurt, has had homo milk for 4 days.