I have developed groin pain on both sides but worse on left side. I've had a look online but I can't figure out what this might be. It's like a constant dull ache but it's worse when I first get up in the morning and when I do things like put my socks on. It often flares when I'm out walking too. It feels like when I bring my knee up towards my chest that something in my groin area is being sqaushed or something there is tender and sore. I'm not sure if it's a hernia(s) or lymph nodes or some kind of strain/arthritis/pelvic floor issue. Is there a way to tell the difference? Aside from going to the gp?