Bulldogs World

Hello All,

My 6 year old male Moose has been exhibiting some strange behavior.  When he lays down his body seems to start to tense up and then relax every few seconds.  And if he lifts his head up while laying down, his head starts to bob up and down every few seconds.  He also seems to sometimes do the head bobbing when he sits and hangs his head down like bulldogs do sometimes.  He hasnt shown any signs of behavioral issues.  He still eats and drinks the same and shows no sign of pain in any way.  Any help would be great.  Thanks

Ryan