Can PA extradite me from Georgia if I violated my probation. For a misdemeanor (DUI - I was drinking at my home) and I already got detoxed and am now going to Intensive outpatient therapy?

Sure they can... but if they actually will is another matter.

Yes that is actually not that far, we would send them to PA all the time. You will go from GA where you will wait a week to two week for transport, to TN and normally stay there for a few days waiting for transport the rest of the way.
You will of course be handcuffed ( shackled) for the entire trip and often will be in a van with all levels of prisioners.

It entirely depends on if the state thinks you are worth the cost of the trip. I think it cost something like 1,000 per state to extradite someone and that is why they usually only do it with felony offender if the states are not next to each other.