Hello

This evening I loaded about 30mg's of NN-dmt into my 'machine' type vaporizer.
Usually I do about 20mgs and I get nice visuals but nothing too spectacular.
This time everything went as usual. The slight pressure in your head, the rush in your chest. Except when it was on its peak after about 15 second I didn't see visuals. I just felt more than usual pressure in my head and I saw some sort of flash like an electric arc (Picture added for reference) across my vision with about 1 second intervals.
After about a minute or 2 it slowly subdued and I started to see slight patterns on the wall like I use to see with lower doses.
My theory is that somehow my brain couldn't properly handle the larger dose resulting in this pulsing and only after concentrations had dropped I was able to see the normal visuals.
Also, I had this experience a few more times in the past.

Anybody recognize this?