Possible Injury Help?

[impactsoccer30]

After a week and a half of resting and only leaving the house twice and NO physical activity because i got my tonsils out. I played some soccer at a outdoor hockey type court for a few hours. While i was playing i was a bit dizzy cause i am still on pain killers i guess and still a bit sick. But after i had been playing for a while i dribbled up and took a shot. Right when my leg extended after the shot i felt a popish thing in the front-insideish of my hip. It hurt alot and i dropped to the ground cause of the pain. It was quite stiff and hurt when i moved my leg too much. Now it doesnt hurt as much but still does. Like before i could barely lift my leg up by itself. Also, there isnt any swelling or discoloration. And during my time recovering from my tonsilectomy, I lost about 11lbs. which i think weakened my legs alot as i dont weigh alot to begin with. I WAS 5'11" 135lbs. but dopped to about 124lbs. So any help as to go see a doctor or as to what could have happened. Its been about a week and 2 days since it happened though.