Genuine question

23 female quite a lot of background history after years of being a 🍃smoker and it literally relaxing me so much, after this year I was put on a antipsychotic called Aripripzole which I had a severe negative reaction to I developed akathsia and had to be put on lorazepam to stop it, ever since then I have not been able to smoke and get the calming relaxing effect from if instead i genuinely feel like I’m gonna die and my heart gets up to 170bpm, I’m genuinely asking for a doctor or physician to help me and figure out why this happens and why I can’t smoke anymore, does anyonehave any idea why this would happen to me? I know ability can mess with dopamine levels and that cannabis has a affect on dopamine levels too but if someone could just help me to understand what’s changed in my brain? Thank you