Sorry!
I don’t have particularly heavy periods, but I find that every time I use a tampon, some blood kind of bypasses the tampon and leaks. So within an hour or so, the string starts to get a bit stained towards the top, or blood will come away on the paper once I’ve been to the loo. But if I was to remove the tampon at that point, it would be nowhere near saturated, and would in fact probably be uncomfortable to remove as it would be too dry. This happens regardless of what brand of tampon I use.
Does this happen to anyone else? Why is it happening? Am I anatomically incompatible with tampons?!