Kinda worried..please help

I currently don't have insurance due to me not being there long enough at work, trying to apply for Medicare or whatever it is. I haven't been able to stand for basically 8 hours now because it hurts to stand and walk without major help. I had to call off work because I knew I wasnt gonna be able to function and here I am at 2am needing help to go and take a piss so I don't have to crawl. It's almost like pressure but kinda sharpish all across the lower abdomen area and I'm starting to get a bit worried. I thought it might've been gas at first but I'm not really sure now because it's been so long and hurts so much and I've passed plenty of gas through the day. I might say fuck it and eat the cost of a doctor's visit because I can't afford to miss another day at work. I would really appreciate anything you guys can give me to help me figure out why I'm in pain and if I should be really worried. No blood so I'm relieved at that, but still...

*edit* this is literally only when I'm standing and walking that I have the pain. Laying down or sitting I'm just fine.

Thank you in advance for anything

8w6d