Screaming or howling in Harrison County, Ohio

My name is Christie Sproull, am 39 yrs old. I live in Scio,Harrison Co., Ohio. In the summer of 2011 My friend was staying in a tent in my yard for about 2 months. She said she could hear something big walking toward her tent. Then one night i was in the house on Facebook around 2 am and my girlfriend was on her laptop in her tent on Facebook. She messaged me to come outside right away that something was sniffing loudly and breathing heavy walking around her tent. I walked outside thinking she just was freaking herself out thinking she was hearing things. I kind of laughed it off, open the door and yelled if she was ok. She yelled for me to come to the tent so I grabbed a flashlight and walked down. I didn't see anything. If there was something there it ran away. I told her it was a deer. She was not convinced. In the summer of 2012 both of my daughters, 16 and 17, came in the house after taking our dog out around 11 pm shaken and scared saying they seen something really big once standing by our tree in the back yard which leads to the woods. Then again walking to the house up the driveway around midnight came in scared and said they had seen the same thing walking around our pool then walked into the woods. I never really believed them. I tried to convince them that there was nothing there, that it was there imagination because they overheard my friend talking who camped in my yard. I told them the dog would bark and growl if something was out there. Then on Nov.27th, 2012 around 11:45 pm I took our 5 month old pup outside to go do his thing. I walked out the door turned right with the pup on a leash toward the wood line maybe 20 or 30ft. from the door. As i started to get closer, maybe 3 feet away, I heard something big shuffling in the briers. I turned thinking it was a deer. When i turned around it stood straight up. It was very big, very tall, very wide. My guess would be at least 7' tall. Very broad chest which was all I could see besides the outline of its body. It was very dark and it blended right in with the darkness except the chest or stomach, not sure which, it happened so fast. As it stood up that part of it was light it showed in the moon light. I screamed very loudly and ran to the house dragging the pup behind me which I don't believe the pup even realized it was there. It scared me so badly I was shaking and crying. My husband and 21 yr old son, who also did not believe the stories from my daughters, and my friend, went outside with a small flashlight and a knife for protection to try to find out what it was. My son said it was still out there and that it was behind the tires wing. He seen its shadow and it ran from him toward the spring on the hillside which is nothing but briers. He said he couldn't see it after that but it was there because it quit running but he couldn't see it or hear it. He had this eerie feeling it was staring right at him. They both came back inside my son had the same description as me very very tall, very, very wide but he only seen the back of it as ran up the hill into the briers. My husband thinks it was curious, whatever it was, because it snooped around but ran away. I truly believe that it was a bigfoot. It was hanging around for over a year that we know of.