Early labor?

I was in the hospital for contractions 2 weeks go, they stopped them and said it was not true labor! I was 1cm and 25% effaced! 
I am now 32 weeks and have has contractions again every few hours during the day, moderate pin nothing as strong as before! Also had a not of dizzy spells, and hot flashes, and diarrhea, and craving ice! No spotting prayer leaking! I'm scheduled for a c section July 15th with a due date of July 21st. 
Has this happened to anyone before? I don't wanna go to labor n delivery for another 5 hours and it not be true labor again! Any advice, or thoughts?