Yes, a relative actually said that to me.
3.5month old DS was sleeping like a dream a few weeks ago (1 wake to feed per night). Now he wakes every hour, either to feed or because his tummy hurts (think it's colic?). And as he is ebf I've been told it's basically my fault 
Worse is that I'm so tired I'm beginning to doubt myself. I don't mind bf meaning DS has to feed more frequently but I would hate for me to be the cause of his tummy pain.
Please reassure me that it's not bf causing the sleeping problems!