Glad you are getting some down time for yourself and rolling more with what life serves up at you. This skill helps at more than just dealing with your son. It is a vital skill for dealing with any kind of stress.

Some SPD individuals sometimes seem Empathetic. I know I "feel" the pain and anger around me and it makes me worse. I also "feel" excitement and happiness and that makes me better. At a young age I learn to cheer up the people around me so that their presence made me feel better instead of worse.

My sister is a giant ball of negative energy (she hates all of human kind and at best views them as tools for her to manipulate), being in her presence (even if she isn't speaking) is exhausting and upsetting. Even non-sensitives are affected by her negative energy. She got thrown out of a Yoga class because of it even before the class started and she hadn't even said anything.

My point is, since your child is sensitive to the world around him, by you being more calm and relaxed it allows him a better chance to reflect that.

Hopefully your child will learn coping methods that allows him to affect the moods of others so that they are no longer causing him as much pain.