Hi Reikini,
Is he anxious about something?
My eldest daughter's way of dealing with stress and anxiety is always to act up. She will never just come out and say how she is feeling, but I now recognise the 'signs' of anxiety as opposed to her just 'acting up' in general. I try and give her opportunities to talk through her anxieties with me through other activities, rather than confronting her directly when she is likely to close up or react aggressively.
Is there something that you could do together where you can just casually chat at the same time about anything that might be worrying him? You say that he is artistic, this could be a wonderful way for him to express his feelings too :)
I have given Reiki to my eldest daughter with her permission in the past. It made her sleepy and relaxed her, but as she has got older she only ever asks for it now if she feels unwell. If you do give him Reiki then I would suggest talking it through with him first and perhaps making it part of his bedtime routine. I would also make the sessions fairly short and be guided by his response to them.
I would also consider couselling as an option. We ended up seeing a child psycotherapist when our daughter was 6 because we just didn't know which way to turn anymore and it was incredibly beneficial both for her and us.
Gentle blessings
Helen
