I normally am constipated but in the last week i have experienced a lot of gas with a mucus clear to pinkish in color along with bowel movements that are large pebble size covered in mucus. some lower abdomen discomfort too?

No other disease?: Each person with constipation needs to be sure there is no other disease causing it. If constipation is just due to slow movement of food and poop through the gut, some things people try are vegetables, water, prune juice, prunes, fiber-with-water, polyethylene glycol, Senokot or other senna, milk of magnesia, other laxatives... Doctor can examine, and if age 50 probably check for colon cancer.