Shingles!?

i'm 14 yrs. old, i had chicken pox when i was about 3 or 4 or something. i just recently got the varicella shot...i guess i didn't need that because i have already had chicken pox why should i try to prevent it? 2 months later...after the shot....(now)....i have red itchy, painful bumps developeing on the left side of me stomach..and one by itself on my right side. they are preety widespread right now...but they are red and yesterday the heads were white but now it looks a little crusty like a mosquito bite...do i have shingles??