First person that I read about also having a problem with coffee and even with decaf. For me it started inducing anxiety like effects and gives me insomnia now

First person that I read about also having a problem with coffee and even with decaf. For me it started inducing anxiety like effects and gives me insomnia now if I accidentally eat a tiramisu or something containing a bit of it. Haven’t found anything that one can get an acquired caffeine sensitivity, but I guess there is not much research. I didn’t have an episode, but it did start during some more mentally challenging times.