I'm sorry you drank sunflower, but I hope your Dad will get better soon with the antibiotics.
I know it's hard to think of yourself when someone you love is suffering, but why not use the same care and concern you give your dad on yourself?
Treasure yourself, nourish yourself. Drinking is just giving our soul away ,little by little.
No one here and I reckon no one in your family wants you to see you suffer.
D