Ok, this might sound a bit strange........
The first thing I eat in the day hurts my belly
I have just had a coffee and a biscuit, first thing eaten today and I am in agony Coffee was caffeine free so not kicking my IBS off

maybe its that your not eating for a while after getting up, my mom had ibs and had this but she was terrible to eat breakfast, but once she got diagnosed with diabetes too, she had to have brekkie and eat regulary, her ibs was ok unless she ate pork, nuts and some fruits.

but i also know ibs is different for everyone

hugs and paracetamol for the pain