I don't have a dawn, but I was just looking at some specimens in my favorite garden center nursery last week. Your tree definitely has a problem. I'd say the roots are having trouble from the repot. It takes a little while for them to recover.
Let me wager that you are over-watering it. Dig your finger down into whatever it is you are using for soil/substrate.
Feels barely damp --> water; else don't. You can also do this with a bamboo chop stick. Just plunge it into the soil and drive it to the bottom. Use it like a dip stick. Pull it out occasionally. Don't water until it is just feeling damp at the tip (bottom of the pot). New growth will droop (like old lettuce) if it is too dry - water and it should recover its normal turgor within an hour or two. Once it has perked up some, you can experiment over a weekend to calibrate the feeling when it is time to water.
What is your 'little bit of osmocote'? I use the stuff too. I apply at the rate of about 0.25 teaspoon per pot gallon; give or take. Is this anything like your 'little bit'? If so, it isn't causing your problem. If you applied a lot more, just scrape some of it off.
btw, a couple of nice thing about Osmocote are its time release and that it releases more at higher temperatures - plants consume more mineral at higher temperatures.
Finally, even though everything I've offered is incredibly useful
, it might not be the right advice for your tree's current situation. More detail from you and any description of how what I've said doesn't quite fit with the facts will be very helpful for getting you better advice.