Thanks For All the Help But still More Questions

I know not more questions. I don"t know why but Brodie is just doing all these new things latly. He is now biting. He has bitten his brother twice now and when he bites he really bites( he drew blood the second time) and he has bit me once. It seems to be out of anger and frustration BUT he also gets a big response from Harley and he seems to like that. Any ideas????

Just anther quick question. Should I stear clear of Panadol. I have been avoiding it latly as it does seem to make him slightly hypo. But just wondering what the general consenice was on panadol???

Thank you again for everyones help