Stimming

Hi, 

I am an autistic adult had my diagnosis for over 10 years, I have noticed more awareness around "stimming"  and I not sure if some of the things I do are "stims" or not...such as repeatedly touching my cold ears which I find makes me very relaxed, hot ears make me very agitated, smelling things repeatedly especially my thumb and top lip this makes me feel calm, I used to self harm all the time from a child which I found soothing such as burning and cutting (I no longer do this as I have replaced it with weight lifting) but I am wondering if the self harm was also a "stim"?

A lot of the stims I have seen in the public domain is hand flapping, spinning etc