So to make a long story short, my almost 7 month old bullmastiff started chewing the wood from my deck in numerous spots. He started throwing up and did so numerous time and then started acting really fatigued and wouldn't eat. We took him to a hospital and they gave him fluids with an anti-nausea shot. He was not better the next morning, so we then took him to his regular doctor who took X-Rays, gave him fluids and a B12 shot. It looked like he had some type of blockage and gas build up in his stomach. Took him home and he finally passed whatever was blocking the gas and now is recovering and full of energy. Were feeding him rice with a little bit of wet food while his stomach still recovers from the blockage and wood.......my main concern is that he still likes to chew. He has not tried to chew the deck again as of yet but he will eat a branch, chew on plastic roof to dog house, patio furniture etc. Now he does not destroy things all the time and this chewing has happened over a period of time. He is a good dog but I'm wondering if hes going through a phase. He has numerous toys from nylabones to Kongs to stuff animals....he likes everything else. Any suggestions or tricks? Thanks in advanced.