herbal supplementation
"Seems to increase capacity for recalling short-term information Vs. mid-term. Noticeably easier to learn during use. There seems to be complications with taking this herb/extract.

It may be causing:
Increased light sensitivity; car headlights, transitioning from indoors to outdoors and any focused light i.e. lasers. The effects are described as a searing pain near my retina or ocular nerves.
Possible interaction with smoked cannabis in the evening, only when lying down for sleep with internal sensations of cranial and neural pulsating. Possibly caused uncomfortable ringing in the ears, more frequent with cannabis use. The latter was non-specific to left or right. Likely best taken in isolation (with food) in the pre-dawn hours - (not sure)"