Thanks for the advice everyone. You did help me.
Kira - I don't think you should make yourself ill to get out of seeing him, because that's not good for you, at all. Who do you live with? Can you talk to them about not wanting to see your Dad? Can you talk to someone about how you feel? Addressing the problem by talking like that is much better than avoiding it. It's normal to not want to see him when he's drinking so much by the way. Don't beat yourself up over that hon. xx