Your tolerance is too low to be smoking what you've been smoking. Only smoke until you feel a buzz, laying anything on too thick after that is no fun. It's almost an instant high so you should know when you're good.
Pot laced with LSD ? Lets pretend for a minute that LSD could withstand the extreme heat of burning (which it cannot) and look at it from a business angle. You already have one product that is easily grown, cured, and has a huge market, next you take another product which requires advanced underground chemists working long hours with expensive equipment, and would need to be in an pure liquid form before being very carefully absorbed into leaf, and then ultimately getting destroyed before ever getting into a human. Sound like a good idea ? What you are dealing with is probably just high grade cannabis, a pure and potent strain can send the nervous system into all kinds of uncontrollable reactions, the reason folk are surprised by this is because they are used to smoking rubbish. Remember, cannabis is a strong psychedelic plant, not just a get-high ticket to provide chuckles and munchies. Respect what it is, not just what you think it is.
You can get a "bad"high