During the beginning of this chapter, Asher drew many pictures of items and buildings burning. His mother and father were both very worried so they had him examined by a doctor. I don't think there was anything physically or mentally wrong with Asher. I think he was simply angry about moving to Vienna so he expressed his anger by drawing fire.
Also during this chapter, Asher subconsciously drew a picture of the Rebbe in his Chumash. He did not draw the Rebbe as he would normally look. Instead, he drew the Rebbe with evil features. This was very disrespectful to his religion. The fact that Asher committed this act subconsciously shows that something must have been bothering him that he was not acknowledging. I think he was upset at how his father was trying to convince him that art was evil and from the other side. Asher's father told Asher that it was against their religion to draw and that he should concentrate his time on his studies. It is possible that Asher blamed the Rebbe for his not being able to draw. Maybe that is why he subconsciously drew him as an evil person in his Chumash.
Asher was called to visit the mashpia about this incident later in the chapter. The mashpia asked Asher questions about his health and his family, trying to uncover the source of the problem. Asher, however, could not concentrate on what the mashpia was saying to him. Instead he was looking past the man and out the window at the rain dripping from the trees wondering how he could draw the rain. I think this shows that Asher was already subconsciously dedicated to his art. He viewed the world as art and spent his time drawing or trying to figure out how to draw something