I recommend taking a shower (since bath y probably just too complicated to sit down and stand up in the tub with the belly and all). I had contractions few days ago just like that, for over 3 hours I felt a lot of pain, pressure and contractions. I woke up my husband at 5am I couldn't deal with the pain, so we were preparing to go to go to hospital, I got a shower and it was a blessing. All the pain went away!
Make water a liked warmer than usual (I know with all this heat doesn't sound too appealing), and focus on belly and back.
Hope you feel better
If you're in that much pain go back in. Doesn't matter about the contractions, they need to help you with the pain.