My guinea pig had surgery to remove a tumour yesterday and she has come home today. We were told to give here antibiotics once a day for 7 days. Today i let her settle in and then gave her the antibiotics after a few hours but seconds after i gave it to her she was sick. I hate phoning the vet to ask questions as i feel like im annoying them. Will it be ok to leave her for the night and try giving her antibiotics in the morning?