I'm highly concerned here. I would really like you to discard any drugs that have fallen into the floor/carpet as that is disgusting. The ground is what we all walk on, do you wear shoes inside? Germs, Viruses, Bacteria, Dust, Insects, Dead skin, etc.. Do you walk barefoot? Germs, Bacteria, Viruses, all the same shit.
Whatever you do, under no circumstances inject that shit. I would recommend getting some sleep and dealing with these drugs when you're in a more sober, logical, rational mindset. No offense at all OP, just trust me this is coming from someone who's been there and back quite a few times, and it is insane how compulsive and obsessive methamphetamine makes us, especially in attempts to recover "lost" drugs.
You see the same thing with cocaine abusers especially with freebase, I know people that will go carpet diving for hours on end on hands and knees just searching for the tiniest rocks and powdered cocaine that *might* have fallen, and *might* not even be cocaine.
tl;dr never inject something that's been on the floor like that.