I would say that if you see no swelling or redness and there is no pain, you are %100 FINE.
Trust me, I just recovered from a MRSA infection and if you have any infection spreading it is PAINFUL like you wouldnt believe.
If that toe was spreading, you would have a gigantic swollen foot and nasty red streaks going up your leg. To have it in your bloodstream is a different story entirely.
You are surely not the kind of person that would just let an infection keep spreading like that so there almost no way you could overlook details like that.
I am somewhat phobic like you too so I know how it is to think that way. Be at peace; you are perfectly fine. On a side note, you may want to lay off the peroxide and antibacterials, those could inflame your toe when it was already healed. Our bodies are strong and if you have the right nutrition, they will have no problems on their own.
Hope this helps you