I've heard that massage pillows can help a piggy with bloat, my Bradley seems quite gassy a lot of the time and needs his belly massaged if he is to poop properly. What sort of pillow would I be looking for? I'm trailing through Amazon as we speak 

He eats and drinks like a trooper, just seems to get bloated at the slightest things, some days he's fine, other days even if he only has his hay and pellets he gets bloated and doesn't seem to poop as much as the other two.