Well been like 4 or 5 days now, when im about 60 percent done urinating, I feel like a tight cramp pressure feeling lower left my stomach by pelvis groin area. Then goes away about 20 seconds after peeing. Its sore when I press in around the area as well. Was lifting heavy stuff at work last week, and honestly felt like I pulled something at one point last thursday. Im scared its like a tumor blocking my peeing tube or something. Or can it just be a pulled muscle, a hernia? Theres no lump or bump or anything when I push out, or anything like that. At first, a few days ago, I was able to feel that tight ache cramp down there when I coughed, or stretched back, or pushed/strained. Now its just after peeing. I cant tell if its getting better or worse. Also random light pain down there on the lower left stomach as well too. What can it be?