Painfull lump on my ?

Hey guys i am 16 not ully active and i do go to the gym about 5 days a week and about a mounth agaio i started to have a a pain on the top of my . I think i fell a small pointed lump on their but idk. I really dont want to go to the Doc but i would like to know what it could be befour i have to let the fokes know. Thanks guys :)