my 16 month old son suffers terribly with mottled hands and feet (sometimes it can be his chest and mouth). they can go really blue with blotchy red/almost orange tinge. this can happen even when his body temperature is normal/cold or hot and inside where it is warm or outside wrapped up in gloves with a blanket over him. he has been started on an inhaler recently for a persistant cough since 3 months old. he has had countless check ups where his capillary refill can be normal at 2 or bad at 5. on examination his lungs and heart present well.should i be asking for further testing as this has been going on for over a year now and i feel like i am being treated as an over cautious mother but i have this niggle that there is something more going on.