Joey, I can see you have already been given sound advice . And while I am also unable to give medical advice, I can share that I once had a seizure from trying to get sober with no medical assistance. It’s not great fun. You need to ask yourself how your very sick cat will go if you have a seizure and/or die while withdrawing. It may be that you can detox at home with medication , if that is your preference - but you still need to see a doctor. You need to put on your own oxygen mask, first.