I do understand your worry and concern. You are likely suffering from fecalith
. A fecaloma is a "stone" made of feces-a hardening of feces into lumps of varying size inside the colon, which may appear whenever chronic obstruction of transit occurs, such as in megacolon
and chronic constipation
. Some diseases damage the autonomic nervous system in the colon's mucosa (Auerbach's plexus) and may cause extremely large or "giant" fecalomas, which must be surgically removed (disimpaction).
So I suggest you see a visceral surgeon instead of trying anything else at home. The surgeon can do you a complete physical and laboratory evaluation, then decide to go in for a surgeon disimpact the fecalith after which, he may try to determine the cause (or he might determine it even before the surgery so as to decide on which procedure to take in order to remedy your situation).
At this point, trying anything at home may proof fatal.
Increasing fluid intake and taking lots of fiber rich meals could prove benificial.
Hope this helps