Does the tonsil surgery have any side effects and how long recover from the bleed, is my voice going to changefor good?

Tonsillectomy postop: You need to expect a very sore throat for at least 2 weeks. Once you start to heal, you will likely take another 2-4 weeks to get back to normal. Your voice shouldn't change much as an adult, unless your tonsils are extremely large.

Rarely: Long term side effects for tonsillectomy are rare. They include voice changes, food form mouth into nose when eating known as velopharyngeal incompetency (1/350, 000 tonsillectomies) recover is 10-14 days for bleeding in an otherwise healthy patient.