Hognose - Nose Rubbing

[adc3]

Hi everyone, I just got my first snake around 10 days ago. He's a baby western hognose. I'm a bit concerned because he's been rubbing his face against the glass of his tank a lot and I'm not sure why he's doing it. I did some research and found that some of the reasons might be hunger, about to shed, or stress. He kept doing it even after I fed him, so I don't think he was looking for food. He doesn't look like he's ready to shed, but I'm inexperienced so I might be wrong about that, so it seems like stress would be the most probable reason for his glass rubbing. If anyone has any ideas on what it might be and how I can fix it, I would really appreciate it. Thank you!