He screams all day - not in pain / not upset / not angry - like excited or just enjoying making the highest squeak/ scream he can.
It's SO loud it hurts my ears, i imagine my neighbours ears - and a few streets away ears. And it's all.... day.... long unless he's eating / sleeping.
I have tried the sitting at eye level, explaining calmly indoor voice etc. I have tried saying calmly No no... no... shhhhh... quiet now. Mummy can hear you.
He doesn't give a rats. nearly 18 months.
Any ideas what else I can do? Just to put this into perspective - I am not a killjoy who doesn't want him to be happy - the screaming is un-bel-iev-ab-ly loud. My mum rang earlier and heard him and said "GOOD GOD! Is he like that all the time?!" and it wouldn't be so bad if it was a stage of the day - but it's ALL day.
Help