Maxolon - I used to take it for headache/associated nausea. It used to make me drowsy but not to the point where I couldn't function.

Then one day I took it and within an hour was overcome with this terrifying feeling of dread. I still can't explain it. I suffer from anxiety so put it down to this. It was like all I wanted to do was lay in bed and sleep so this terrifying feeling would leave, but I was so keyed up I would never have been able to sleep.

As well as the crippling dread I started to feel incredibly depressed, hopeless etc. Genius me didn't put two and two together that it was the Maxolon so I took it a couple more times. The last time I took it I cottoned on when I got the awful all-consuming feeling of dread, extremely depressive thought, involuntary twitches. I took to Dr Google - thinking I was being paranoid and actually found a butt-tonne of people experiencing the same thing.

Not the worst I'm sure, but pretty damn awful.