My stool haven't been coming out in one piece for the past few weeks (unlike before). Now its more like diarrhea, except not very watery and more mushy I would say. A more well formed piece of stool usually comes out first, followed by the more watery and mushy types with gas.

Just recently I noticed I can feel a lump when I press down on my lower left abdomen (but its only about 4 or 5 cm below the belly button if I measure across and its not a visible lump coming up from my stomach) - could be something, or maybe its just the stool in the intestines. But this morning when I took a dump, there was slight pain/discomfort in that area when I was pushing out my stool - wasn't very significant and went away quickly but its what caused me to really notice that lump there.

It has been a few weeks now so I would like to know the possibilities and what to look out for. BTW I'm 17 year old male, in case that means something.