Coincidentally my brother had a funny turn on Friday. They thought it was a heart attack and wheeled him in for tests. The CT and bloods came back fine and they're doing an MRI tomorrow, which he has elected to stay in hospital for. He feels absolutely fine now, like nothing happened.
I also had a thing some time back, think i reported it here. Sudden crushing, sinking sensation when recollecting an image from a dream, weird and quite frightening.
After three of four I was failry rattled and ended up in QA for the rest of the day. Was completely fine the next day too.
Glad you're back to normal (for a given value of normal at least
)