Do I have leukemia (10 pts best answer)?

I'm 20 yrs old and I noticed I had like 3 petechiaes on my arm and like 3 on my leg...do i need to have many more to actually be concerned at all? I also had body pains all over my body...they feel like aches and sometimes burning pain everywhere. i scheduled an appointment for monday but would like to have some ease of mind for the weekend.