Do I Need to call My nurse?!

Nanya • Pregnant with #2 after 10 years.
So yesterday I was out shopping for about 4 hrs. Then when I came back home I was on feet for the n2-3 hours arranging dinner and doing house work. 
At night I started to have very strong Braxton Hicks contractions, I believe I had about more than 8 in an hour. I lied down and had water. In about 1 hr 30 mins they did subside.
But I do have back pain and pressure in my pelvic region. Do I need to call the nurse and tell her all this? Confused :-/