What a great website....My 2 year old son has been taking singula...

What a great website....My 2 year old son has been taking singulair for about 1 month, I know that he's having nightmares, his appetite has decreased substantially,and his behavior is unusually aggressive (I thought it was bad behavior picked up from day care...) I'm really having second thoughts about this medicine. confusing...this medicine does break up the thick mucas leading to labored breathing attacks...this is worth investigating more....what to do to have ur child diagnosed and treated properly.