I tried Choline bitartrate, CDP choline, uridine and sulbutiamine . which put me to sleep very quickly after intake. I lose any ability to concentrate, I feel dizzy and weak. Cholinergics also induce anhedonia or emotional '' flatline''. I assume it's somehow related to dopamine and acetylcholine balance in striatum. But if it's ACH overabundance, how did that happen ? Or it's something to do with dopamine receptors. Maybe someone can elaborate what can be wrong ?