I think that constipation can be a result of the cyst too. Glad you are eating again...and are feeling a bit relieved!
Oh yes... constipation can be a symptom of the cyst. I personally have become a fan of the cherry-flavored Maalox/GasX combo. :)
Just make sure if you use a stool softener that it's a gentle one. The harsher ones tend to make everything a little too easy and you end up with the opposite problem.
~Mare
Constipation can be a sign of not eating also. If your not eating there is very little residue