Ask a Psychiatrist and Get Answers to Mental Health Questions ASAP
It appears that your son has a major mental illness. In this case he has olfactory (smell) hallucinations. It should be cleared medically because such hallucinations can be a sign of serious brain illness. In most likelihood this problem is a symptom of having a mentally ill psychosis. He should be under the supervision of a psychiatrist for possible medication and psychotherapy to help deal with stressors and reduce symptoms.
If you require further clarification or more information, feel free to ask!
Please click the green "ACCEPT" button on this page if you are satisfied with my answer so that I get credit for my work. Your positive feedback is most important and bonuses are always welcomed. If this is a mental health, or medical emergency, please call emergency services (911 in the USA), or go to your nearest Emergency Room. The opinion provided does not replace an evaluation by an appropriate professional. Use of this website DOES NOT CREATE a provider-client relation and this information is for educational purposes only.
Not knowing how he reacts. it is probably safer to carry forward when hen he meets a therapist.
Thank you for caring. He is a lucky individual.