I know this isn’t the same but I had a bad day out of nowhere and I was scared like you and when I told the dr I felt like he doesn’t understand how scary it is for us. Oddly enough, a couple days later I was good again. Some weird hiccup I guess. I know he mentioned some people get their Stelara adjusted in frequency when needed. I really hope you get back to feeling better soon. My surgeon said to call if I feel like my fistula comes back, can you do that? I’m not sure what they do medicine wise though.