My 8 month old female Lakeland has been urinating normally, but the last 2 days she occasionally has drops of blood in her urine, as of this morning I have also noticed she has a greenish yellow mucus or discharge in her urine, again, not always. She has suffered with cystitis in the past and has been treated with antibiotics for a urine infection, is this cystitis again? And is the mucus related to cystitis? The mucus was not there the last time she had cystitis. Any information would be great.