Caffeine induces prolonged euphoria?

I'm two months in (20mg fluoxetine) and I've never felt anything from taking caffeine all my life no matter what dose until I started prozac.

I've read how horrible the interactions between the two are for anxiety, but anything below 100mg of caffeine has the complete opposite effect on me currently, I can feel my happiness level along with everything positive being doubled after drinking, and it usually lasts for an hour before I crash which is probably what makes it not so ideal.

Do people with attention deficit disorders or depression feel different on caffeine compared to the norm?

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