Gather the facts before you write the questions
A vet can only reason from what you bring, and with an elderly tortoise the useful evidence is a timeline, not an impression. Note when he emerged from his winter slowdown, when you first noticed him eating less, and whether the dip is a refusal of everything or a new pickiness about certain foods. Record the temperatures at his basking spot and in the cool end, how many hours of light he gets, and whether anything about his setup changed over winter. Write down what is actually offered each day and what is left, and weigh him — a stable weight alongside a smaller appetite tells a different story from weight sliding away. Note his droppings and urination, his soaking routine, and how active he is compared with previous springs. Facts first; the questions practically write themselves from the gaps in them.
Questions about the post-winter picture
Winter changes a tortoise's circumstances in ways that can look like illness, so several of your questions should aim at the setup. Ask whether his current temperatures and light hours are right for an elderly animal re-starting after the cold months, and whether the warm-up after winter should have been more gradual. Ask how long a slow return to full appetite can reasonably take at his age before it stops being seasonal and starts being a finding. Ask whether his food offering needs adjusting for an older animal — variety, calcium, the balance of what he will accept versus what he needs. These questions matter because they separate the things you can correct at home this week from the things that need the practice's hands and equipment.
Questions about the tortoise himself
Then turn to the animal. Ask the vet to check and talk you through his mouth and beak, his eyes and nostrils, his shell and skin, and how his body condition feels for a tortoise of his age — and ask what each finding rules in or out, in plain terms. Ask which changes would be expected wear of old age and which would not, so you leave knowing what normal looks like for him now. Ask what weight loss over what period should trigger a return visit, rather than waiting for the next routine appointment. If he has any long-standing quirks — an old shell injury, a history of picky springs — ask how they change the reading of this one. An elderly tortoise's keeper is often the best historian the practice has; your questions should invite the vet to use that history.
Questions about next steps and watching at home
Finish with the plan. Ask what, if anything, should change this week — soaking, food presentation, temperatures — and what should deliberately be left alone. Ask how you will know the plan is working: what improvement in appetite or activity, over what span of days, counts as the trend turning. Ask what signs mean phone immediately rather than wait — a tortoise who stops drinking, passes nothing, becomes unresponsive or develops discharge at the nose is a different conversation from a merely picky one, and you should know the line before you need it. Write the answers down during the appointment, not afterwards. If a gap remains in that list before you leave home, put a follow-up question to KinsLe's Kinny; he answers using the KinsLe Answers library.