I struggle to go to the toilet to poop. if i go once a week that is a lot. i have been feeling like this for a while and now i have this uncomfortable tight pain in my right lower abdominal area and have diarrhea. how can i fix this ?

Need a doctor's help: Each person with constipation needs to be sure there is no other disease causing it. If constipation is just due to slow movement of the food and poop through the gut, then things people try are vegetables, water, prune juice, prunes, fiber plus water, Miralax (polyethylene glycol) Senokot or other senna, milk of magnesia, other laxatives... A doctor can evaluate and prescribe helpful meds too.