Did you put anything up there that would
make it bleed? You know those capsules
are for taking orally, right?

j/k
joking aside, you should definitely see a
doctor about that one. I have had that
happen to me before because of my
irritable bowl syndrome and severe milk
allergies. For me it was nothing, but it
may be a coincidence and could be anything
from hemmeroids to cancer, so you
definitely should get it checked out.
Btw my wife takes that same meds (10mg
xr), she gets stomache aches and nausea on
it, so maybe it's harsh on the stomache.