I have an extremely embarrassing question

Have any of you experienced fecal incontinence? I have been experiencing this on and off for about a year or so now, mostly at night, waking me up, just can't make it to the bathroom in time. I saw the GI doctor today and he basically just wrote me off since I was previously diagnosed with IBS after having a colonoscopy 8 years ago (which I think was a cop out; I think they just didn't want to find the root cause of my issues). After an exam he also told me I have an EXTREMELY weak sphincter muscle (I think?) and to do kegels to fix it.