TMI POOP HELP?!

Okay so this is gonna be tmi but I only poop once or twice a week. And when I do, I do it multiple times in one day. usually is onset by lots of (extra smelly) gas and pain in my abdomen, possible nausea and bloatong, before I suddenly have to go really bad. And then it's painful to go. I'm probably dehydrated bc I never drink water, but I was just wondering if anyone else has this issue?? should I be going to my doctor? Also I'm not pregnant or anything like that, and this started up a month or two ago I think?? I don't think there's any specific thing that triggered this to start... Also when I go it's A BUNCH at a time. Like I have to flush the toilet before wiping cause it might clog... 😭