Can too much fiber a bad thing?

yes, you can have too much fiber. The recommendation for women is 25grams of fiber and for men is 30grams, but it will be okay to go over the limit as long as you do it slowly. you body needs to get used to it. if you increase the intake of fiber by a significant amount, you'll probably be bloated for awhile. It will go away though. if that happens just cut back on the fiber and increase the fiber intake slooowwwlllyyyy. After a one or two weeks your body will adjust to the amount of fiber and you'll be able to take in lots of fiber and not notice anything at all but until then you should take it in little by little.