My stats often run 97 to 100, on oxygen 24/7, at 4 , 4.5 when walking on pad walker. I drink a lot of water have acid reflux have had barium swallow and modified which shows food sometimes is slow to go down do eat small portions small bite now I have lost from 155 to 122 since August. Drink nothing but water. Walk you loose what you put in. This makes no sense. Have a endoscopic coming up soon.