IBS Help 😷

I'm almost 17 and in high school. I'm three weeks in to class this year and I've already missed 3 days of school. I'm diagnosed with anxiety and IBS which definitely feeds off of each other. I take so many probiotics, anti-anxiety meds, etc. I'm at a loss! My symptoms of sharp pain, hot flashes, and diarrhea/ constipation are happening every single day. There isn't one thing that triggers it but I believe that it's stress because it flared up when school started. Any advice would be greatly appreciated 😣