I've sent tea with a house elf. Yes, you should wear your pyjamas if that's what you're comfortable in, and I'm glad to hear Terry will be staying with you. You might, in fact, consider having him come spend some time with you in his dog form in the next day or two; Sirius has been known to shift form when I'm very cranky, because I can't stay cross with the dog even though intellectually I know perfectly well it's the same person.

Some months I do want meat, the rarer the better. Other months I'm repulsed by it. I've never been able to spot a clear pattern.