Recently I have felt some discomfort in my upper/inner thigh area and it was fine until I took my dogs running one day. After wards I would feel it when I lift my knee up or when I run. No real pain or anything, just mild discomfort. I thought it might have just been a groin pull but my friend suggested it might be a hernia. I'm having a bit of trouble trying to distinguish which is which from the symptoms I have looked up on the internet. What do you guys think?