How long will this last?

My boy was a horrible, difficult baby. At 2 years he became pretty nice. Very easy to persuade, fully potty trained, can explain his needs, an extremely gentle and loving child.

At 2.5 years, so 2 months ago he changed. He stopped talking and started whining. EVERYTHING is said as a whine. "More milk?" Is "mooReeeE mIIiIiIilkKK!!!" Etc. He screams and cries so much over things like having to wash his hands, having to shower, having to close cartoons, having to clean. Bedtime is a hit or miss, sometimes my husband has to tackle him to put him in pyjamas and he bites him! We always try to turn his tantrums into a game by tickling him which leads to him laughing but he just whines and screams all the time. Every time my husband comes back with him from a walk, he says he's never taking him outside again.

I know it's a phase but I find myself having to go back to using ear protection which gives me PTSD from the baby years. Any others in the same boat?