i think it's Fordyce's spot but theres something a little no

hey, i'm 16 and i think i have Fordyce's spot on my scrotom sack and shaft of my penis, but i found that when my penis was erect 1-2 of the little white dots i would be able to pinch and a small amount of white substance would come out, a bit like a spot/zit/whitehead... i just want to see what everone else thinks about this and whether it's just a little differnt everyone elses...?