?

Last year I had a physical. I am a male, my doctor is a female. This is the first time getting a physical from her, I was 27. She asked me if I wanted her ro check my testicles, seemed like she did not want to, but i said yes because i was having occasional pain so I wanted to make sure everything was ok. Well she grabed a towel and held it up to block my privates while i dropped my pants and had me hold it after so she could do her checking. Is it normal for a doctor to cover the privates while doing a physical like this? I m asking because i am due for physical and wondering if i should go to a different doctor.