Is there a condition to check whether the player is overencumbered or not?

I can't do it via papyrus, I need it to be a condition on a magic effect. GetActorValuePercent CarryWeight does not work unfortunately.

http://www.creationkit.com/Actor_Valuecould help

Looks like you dont need the Percent in your GetActorValue, but you proberly need to find a way to check if current value is greater then allowed value, or as an alternative if the player can fast travel or not. Fast travel is normally blocked once you carry to much

GetActorValue would allow me to check if the player is carrying over a certain amount, but the amount changes based on Stamina...

IsFastTravelEnabled is an option, but not an optimal one. This will trip the spell when the player is indoors, for example.

Wouldent it be possible to parse the current stamina the player have, in say a float and check that to the spell?

some thing like this

int playersStamina = Game.GetPlayer().GetActorValue("Stamina") as int

and then check the value you get from that against what other conditions you have in your script?

Stamina might not be optimal either, because it will not work as intended with mods that change the stamina/encumbrance relationship.