I don't have DID but when I saw a thread entitled Brain Bursts I clicked. I get these.

I first ever had them when I tried shrooms, which was a very interesting spiritual experience for me. I get these brain zaps still when I am feeling more creative or when my brain is moving quickly or making new connections, like when I am learning something new that excites me. It's very interesting that you had them when your alters were considering integrating.