Wellbutrin - expected HIT symptoms but have opposite effect

I'm on 150mg XL and started 2 weeks ago. I've been reading on this sub its a histamine liberator and was fully expecting a reaction. Maybe it will happen the longer I'm on it? So far its been incredible in not only alleviating ADHD symptoms/depression/anxiety but GI pain has improved significantly. I've been eating trigger foods in small quantities and there's been none of the usual HIT symptoms. The only downside is constipation and still being bloated.

Been talking to my GP about the gut-brain axis and wondering if my HIT is caused by microbiome disruption and the Wellbutrin is keeping around what little norepinephrine my shitty gut produces and makes it useful.

Anyone else taking Wellbutrin and had improvements in HIT symptoms?