What did your contractions feel like???

Tonya
Tell me what your contractions felt like. 
Were they painful or not? 
Did you get a throbbing in back ? 
I don't remember how my first pregnancy started - I don't remember the mucous plug or bloody show at all, I went in and they told me I was at 4cm and we waited awile until I dialated more then they broke my water because it did not break. 
I also do not remember how painful the contractions were. I had my first 7 years ago.