I have 14 month old b/g twins. The last 5 months my ds has had bouts of crying whenever my dd cries or yells (even happy yells). Even when he is around my 2 yr old niece if she laughs loud, he cries. I can't bathe my twins together because my dd is so excited so she yells and laughs and he freaks out. And it is a hysterical cry. He is tough when it comes to physical pain (he'll bang his head against the wall or fall down and not make a peep). But he freaks around noises (mainly other kids but sometimes if my husband laughs loud). Could his hearing be oversensitive and actually hurt his ears when he hears these sounds or is he just sensitive and the noises just scare him? Loud bangs, train whistles, trucks honking don't bother him, just human noises. Has anyone else experienced this?