It all started we were buying the house and the neighbor told us the septic had back up so we had it pumped. After buying the home we noticed when you flushed the toilet it bubbled. Now we have been in the house for a week done some luandry and the toilet isn't wanting to drain, water back up into the bathtub and there is water puddled up out side at the cleanout. What do I need to do to fix the problem PLEASE HELP