I am a 17 year old teenage boy.Yesterday i suddenly had a pain in my left testis.I thought it will go after masturbation,but it didn't. Today morning the pain is relieved now there's a dull aching in left testis and lower abdomen ,with occasional sharp pain and twisting feeling in lower left abdomen extending from left testis.

I also observed that my left testis is now slightly higher than the right one ,and there's a  small bump (which moves when i touched)inside my left testis(above the testis).and whenever it was from that bump yesterday i had pain.

Please give me a reply,i am very worried