Well definitely Don't throw it as been suggested^^ lol
As been said just relax it's normal, funtime will be starting very soon.
If it is just yellowing in brand new stuff, that will sometimes happen with some strains as its moving into flowering, post some pics, but it is most likely normal, it will be putting some resources into the stretch.
You should really go get a cheap tester at least and check your water, sounds like you're using straight up tap, which really sucks a lot of the time.
Listen to any advice from True Grit, he ran the DeadheadOg and kicked ass (check out his thread)
Just be patient, it looks like everyone who's grown the DeadhadOg has been wayyy happy, huge huge nugs and super Dankness.:harvest: