Is it normal for dead skin and bleeding around my tongue piercing? got it done 3 days ago?

A little bit of dead flaking skin might be normal but it all depends how much. Is it possible the piercing ripped? Are you having any swellings or more pain/as much pain as when you got it pierced? By day 3 the swelling should be going down. If the piercing site looks clean, you can't see any rips, swollen lumps or enflamed areas, it's probably normal. Eating ice, cold popsicles and frozen pineapple juice will help reduce inflammation.

If things don't seem right, and theres a LOT of dead skin or continuous bleeding, go back and see the piercer right away.