Heat rash, sun poisoning ....? Who knows?

lex

So on Sunday I went to the lake, I used sunscreen spf 70 so I don't see how I could have got sunburn and its not everywhere just in 2 spots on my back. It's very sensitive and itches around the area. I was in the water a little bit but I never burn so I'm not used to this I always tan. I have a picture you can kinda see it. what do y'all think?