Supersaponins make you tired?

[Steve_W]

Ceased used of supersaponins as I unfortunately didn't really notice much if any of a libido boost. Thought I would give it a crack again and started today, took 2g this morning first thing and another 2g this afternoon. All afternoon have had huge lethargy, not much energy at all. The only difference is the supersaponins. I've seen mentioned that tribulus can make people tired, is this a reported side effect of SS??

Thanks

[Steve_W]

Sorry, just to clarify, not a tired as in sleepy feeling - sort of a wired but really lethargic feeling, hard to explain