There are noises coming from what I believe are the water pipes that sound like seeping and chugging. These noises all of sudden began and since they began have been non-stop. I am so worried that a pipe has burst and water is leaking under my house. Please help

You may have a hidden leak. To check for a hidden leak on city water, shut off all water usage in the house and go out to the water meter. Check the little pointer. It should be absolutely still, no creep whatsoever. If it's moving then you have a leak.
If you're on a pump then make sure the pump's up to pressure and shut off water usage in the house. Turn the pump off at the breaker box and watch the pressure gage. If it falls back steady then you have a leak.