I fed my first grow with Epsom salts and molasses the whole way through and during flowering I buried banana peels in the soil when I re-potted. I got 4oz of really nice fat bud off of two plants. My only issues were that toward the end of the grow the fan leaves got really yellow, spotty and...
@OP do you have any of it left? if you do, post a pic-- my guess is it wasn't weed at all. . .spewing blood sounds pretty bad-- maybe you should go get checked out??