Dont worry!
I doubt you have done irreparable damage to yourself or others. You'd be amazed at how the body can heal itself. I mean, think about people smoking cigarretes on a daily basis, people breathing fumes from cars, or in India everybody burning plastic because there is no garbage collection system, and the particles everyone is breathing, etc etc.
How much in mgs can it be of some impurity that you've exposed yourself? Probably very very little. Im not saying this as a "go ahead and smoke stuff that might have impurities" way, but rather like "nice that you worry about yourself and others, please do take care next time, but dont worry about what already happened, just keep being healthy and conscious "
Dont appologize, you're doing the right thing researching and rethinking your actions! Be well!
