44 yo 1x a year pain (probably happened 2-3 times) with bleeding from anus when wiping and 1x blood on top of stool. anus always hurts during this, had hemorrhoids in college during another episode. diagnosed constipation,gp unconcerned?

You probably have both internal and external hemorrhoids. For anal pain, you can use warm sitz bath + apply cream with steroid + anesthetic (sold OTC). For internal hemorrhoid you should hydrate well, active life style and high fiber diet for preventing constipation. Request to see a GI doctor for endoscopic study just to be safe and hemorrhoid banding can be done for moderate to severe hemorrhoid