^^^
In my experience, a lot of chest pains form psychs could come from extreme bloating, that would cause the diaphragm to push up and physically cause heart aches and generally unpleasant chest tightness. I have found that taking Simethicone (antibloating OTC med) helps pretty good with that issue.
Also try magnesium before and after the trip to reduce negative body effects.
I like my AL-LAD with a little of ETH-LAD mixed in. AL-LAD does not agree very well with LSD imo. I have also tried all three isomers together (1 hit of LSD+1 hit of AL-LAD+1 hit of ETH-LAD) that yielded a very weird trip with a lot of confusion throughout and unbalanced energies.