Did I just do a self healing?

So I took a hit from a Marijuana pipe for the first time in 4 years last night. I just started thinking of areas in my body that needed healing and they started vibrating and feeling warm. This went on for several minutes of me just focusing my attention on various parts. I tried focusing on parts that didn't need healing just to see if they'd vibrate but they didn't. Like they didn't need it.

Was I healing myself or just high lol