Feels like full of air after enema

I dont know what it is but after take enema later that day feel kind of sick to stomach and full of air and it can last for a long time. I've tried letting the water out of the hose making sure there are no bubbles keep the hose hanging down thinking air somehow backs up the hose and clamp hose right after zi see that the water has no air bubbles in it

The only thing I can think of is sometimes when I do an enema I can't take whole 2 quarts I have to stop it and start again could that be putting air into me. Makes my enema not as pleasant. Any suggestions?