This really doesn't sound like CC. It's no coincidence that the red streak reappeared when you started having hard, lumpy stools again - they're the cause! Hard stools can cause both fissures and hemorrhoids. (TMI, lol) When I pass very hard stools, the same things happen to me - I always have some bleeding. Other times, when my stools are healthy, no problems - much like yours! And yes, it would have progressed in that time.
Keep your appointment with your GI, of course, because they will definitely be able to give you peace of mind, but do not waist the days leading up to the appointment filled with worry, because this is a normal thing, and it's not CC.