Hi im new on here and just wanted some advice. My ds had a nosebleed when he was 6 months old,it just started by itself.(I didnt notice until I answered the door and the lady at the door told me!!! ). Anyway ds is 3 1/2 now and has had a couple since then but very randomly.Last one was in July at a friends wedding. Again he didnt do anything - no crashing into anything,falling etc. Is this normal or should I worry and see Dr?