i think getting ready for dr appts makes us nervous in general.
i hope your appt goes well.

before i lost some of my weight i seemed SOB (short of breath) with everything i did. when i lost 40lbs i didn't have that anymore.

if you do need to drop some lbs set a short term goal, like 5 lbs. something that's doable. then take it from there.

i started by changing what i had to eat in my fridge/freezer and pantry.
i cut my portion sizes and the # of times i ate/day. i also cut out sweets as i had turned diabetic.

good luck with your appt.
please let us know how it goes.