I’ve had 2 doses of the AZ vaccine.
No ill effects of any significance. Felt under the weather the day after the first dose, warned I might feel worse after the second, but it was less of an issue than the first.
I suggest you prepare yourself to feel a bit rough tomorrow (perhaps get some snacks ready now in case you don’t feel up to preparing food!) and try and make sure you keep yourself hydrated. I’ve heard people recommend paracetamol before bed.