BM's (sorry)

Anybody have any idea what causes long bm's?  I didn't make any changes to my diet other than increasing protien bars to 1 a day and had a lot of extra stress at work(yeah no stress eating woot woot).  I had a couple world record bm's Thu and Fri.  Could it just be my internal motor burning fat?

Could it be you are eating less fat??

My diet hasn't changed much added a small amount of fruit/veg

 I sometimes have a hard time determinig what men are posting.  Are you sating that the size of the stools has changed or has the time you spend having the bm lengthened.  I've had an odd condition for the pst several months.  I usually have to go to the bathroom and have 3 separate bms in the morning.  I wish I could just sit and have one.  Nope.  I'll wipe and start to leave the bathroom and then realize I have to go and sit down again.  That's frustrating.