Woke up with a numb leg and now my toe is still numb? help!?

I woke up with my leg feeling numb (it happens once in a while) but 1hour has passed and my fourth toe is still numb. Im really scared cause i have some kind of infection (it looks like eczema i dont know) behind my knee and i scartched it alot can it be because of it? My toe isnt cold or whitish it looks normal, i can feel and about mobility i cant tell much since my toes are extra super small and move at the same time... but why isnt this tingling feeling going away? I have carpal tunnel syndrome is it possible to have developed tarsal tunnel symdrom too? help im scared it might be a blood flow problem :(