Experiences - Bunk Acid

[WhiteRhino420]

last night swim had one dose of acid on a blotter paper
normal size with both sides colored maroon, amount of mg is unknown
swim left it on his tounge and moved it around in his mouth; swim put it under his tounge and lost the blotter somewhere in his mouth after 30 minutes of letting it sit in his mouth.
swim is pretty sure he didnt drop it or anything, just swallowed it proably
but throughout the night, swim felt a little, tiny bit of euphoria mixed with anxiety, this was all he felt.
he's done mushrooms three times and all those times have been more intense then this.
no movements, no visuals, no hallucinations, no nothing

swim had a few hits from his friends bowl of weed who was "trip sitting" swim
didn't feel too high, because they were only two wimpy rips.
after 45 mintues of taking the hit, nothing was felt, swim and his friend went to their buds house and smoke a few bowls and swim thought this would bring the trip on...

felt really really stoned and a good body high along with it, swim thought he was coming up, then he started bursting into laughter and couldnt stop but then he did and after that, that was all he noticed with effects.

swim called his friend today and asked him what could have went down.
swim's friend said that his first time dropping lsd was pretty much like swim's experience but his second time was, in his words, "absolutely mind blowing"

anyone know what could have happened?