I am wondering if anyone else has used Roaccutane and had their condition return later after successful use initially?

I have (had) acute cystic acne, from my waist to my neck and my elbows to my shoulders, very little on my face. It began in my very early teens and persisted through every treatment I could throw at it, until finally at 18 I was put on Roaccutane. The most amazing thing known to man! LOL
It worked wonders, and within 6 months my skin was completely clear. I finished the course and that was that. I was so so happy, seriously, the acne had completely devastated my teens it was horrific.

Anyway, all has been fine for 10 years. Now it seems not. My back is *covered* in acne. I haven't seen it this bad since I was 17. It is all around the back of my neck and onto my jawline.

I haven't had any major hormonal stuff going on - I am still BF DD2 and that hasn't changed, I have been pregnant and/or breastfeeding for almost 6 years and no issues.
Is it possible simple stress could have done this?

So wondering if anyone else who has had a successful treatment with Roaccutane has had their acne return later on in life? Guess I need to go and see my dermatologist again.