Should I take my rabbit to the vet again?

First i noticed her eyes were goopy so i took her to the vet and he gave me eye drops. He looked at her teeth and said they were fine. Now i've noticed her chin is excessively wet. I've never noticed it before. Now i know this can show dental problems, but the vet said the teeth looked fine. I also noticed she hasn't been eating as much, she especially hasn't touched her hay. She's pooping normal though but has lost at least a pound. Could that be from the antibiotic for her eyes? I also noticed she's more lethargic. What could be wrong with her?

She is wet under her chin because she is overheated. Give her a bowl with water cause its easier for them to get the water. If she is hot and is drinking a lot then they won't eat. If its goop in her eyes its probably just her fur irritating her. Give her some greens like ice burg lettuce (Never give them the balls they have too much water and give them diarrhea). Never go to a vet they make you pay a lot and don't know much about rabbits since they are considered "Exotic". Contact a rabbit breeder they are always willing to help.