Bowel Complications 1 year Post Lapband

I'm post lap band surgery and while I've been losing at a slow/consistent rate, I'm experiencing a symptom the past 2 weeks.

As background.. Soon after the surgery and adequate fills, I had been experiencing lower gas which has been more embarrassing than anything else. My surgeon explained that the gas had to go somewhere so I didn't think it was serious. I also had trouble pooping more from the ability to push it out. I adapted my diet and that seemed to help but not prevent. I was fearful that pushing too hard would be harmful; so as gross as it sounds, I used my finger to expell. Now, I have chronic diarrhea that inconsistently comes and goes without any other symptoms or rationale for why. Any insight?