Maybe crystals/stones causing blood as trying to pass.
Odd that meds would be given w/o checking urinalysis again.
and not to be superstisious...but the "number" of your # of post's
He is your friend, your partner, your defender, your dog. You are his life, his love, his leader. He will be yours, faithful and true, to the last beat of his heart. You owe it to him to be worthy of such devotion. - Unknown