Right well, where do i start

Im 16 years old and male.
In February this year i weighed 13 St , and decided to lose it.In 4 months i was down to 10 St , through alot of running. But when i was running i sustained a Groin Strain and started to get Ball Ache. I immediately did some research and found out that ball ache is a symton of groin strain. But i checked my testicles and found nothing apart from the Epidymis(Sp) at the backs, i was worried when i found them but i later found out they were normal
So after a few months of having groin strain i was still running and still having ball aches, i know i should of stopped and rested but i didnt. I eventually went to the docters when it completly went in a football match, he told me to rest for 6 weeks and it should be fine. He also did a Blood Test just to be sure as i told him about some stomach pains i had ( But i forgot about the ball ache

) The results showed nothing untoward.
But due to me being a fool , i was back playing footy in 3 weeks and it went again, and since then i havent really rested my groins and still hurt( i occasionally get ball ache now but no where near as many times as before).
But now im starting to get aches and pains in the insides of the groin which then radiates into the lower abdomen as a result. I think this is due to the groins.
But one day i was just feeling the abdomen and at the sides next to the groind i felt a small thing, ( there are one , on each side , Right and left) I just want to know are these things normal??
PLease help me clear all this up