Weird ache in my lower abdomen and groin...can you tell me what it is?

So a few weeks ago I was playing soccer and I thought I had pulled my groin. I sat out for a few days but when I played again I injured my leg really badly. The whole top of my left leg & an area near the groin were all in sharp pain. Even my testicles were in a little pain! I could barely walk around that night after playing. I went to the doctor next week, and initially I thought this was a hernia but since then the pain has decreased a lot and the doctor told me it's not likely it's a hernia. He suggested that it was a small muscle tear or strain in that area due to the fact that I was twisting & turning playing soccer.

Now the pain is virtually gone, but every now again, I feel a dull ache in the same areas, but more so in the testicles. Even when I start running I can feel that I will injure it again. The doctor told me to stay off exercise for the next week and now he told me to do it again but this time I should start jogging lightly to test it out. I currently take Meloxicam as an anti-inflammatory medicine to help relieve the pain.

What do you guys think? Do you think this pain is temporary or much more serious?