Hey guys I have a question I'm a new reptile owner and I'm kinda scared of what my snake is doing he is holding his head back perpendicular to his body, not all the time though like he was laying still a moment ago but when I touched him he pulled his head back. He has also been in weird areas of his terrarium that he doesn't normally go unless he is moving around but he is staying still in these spots. He is around 6 months old now and hasn't shed yet. He recently stopped eating when I try to feed him this has been going on for about 5-6 weeks now (just the eating the head tilting is like 2 days now)

Pic related kinda snake I have.