Surging and noisy brakes on my Elkmont

Hello: We are new to towing and finally got our Elkmont on the road today. Had surging feeling in tow vehicle and noisy brakes coming from the trailer. Truck seemed to be running warm (as cooling fan came on several times and we only traveled a few miles to local park. We did not have this the only other time we had it on the road. Suggestions please? thank you,