Relax, its possible to get it twice, but could be shingles if you start to feel achy. Probably best to see a doctor to be sure, then avoid contact with people who've never had it and use calamine lotion to help with the itching.
you cant get chicken pox twice. It can be shingles though. Call the GP now! Tell them what u suspect they should be able to get you an emergency apnt and they will put you in quarantine while you wait. I ad chicken pox for the first time last year so I've een through it. If you are above 18 you need to go anti virals ASAP.