I react very strongly on medications like SSRI, SNRI, Anti-seizure meds and so on.

For an example: 100 mg Gabapentin or 25 mg Lyrica feels like x10 the dosage. I can’t tolerate SSRIs bc if strong side effects like cramps, twitching and feeling hyper/stress. Even 5 mg of Fluoxetine. Propranolol and other non psyciatric meds doesn’t seem to do this.