Is it bad to be addicted to smelling chemicals?

Addiction: Addiction implies a loss of control, so probably not healthy for you to be addicted to most things. That would certainly include chemicals, that can be toxic in all sorts of ways.

Yes: Glue sniffing is very common in some partssouth america. These unfortunate children usually do it to control hunger and escape their social problems. Unfortunately these chemicals can have very bad effects on the brain and the long-term can even affect your kidneys. I recommend consultation with your primary physician and a violation by psychiatrist to help you with these issues. All the good luck.