Is It Normal For Secondary Burns To Feal Fine Then

is it normal for secondary burns to feal fine then when goto move you cant hurts so bad throbbing feals super tight like going to explode..... i was burned at work on wed. changing deep fryer greese last phaze ... the boil out.. was taking bucket out to dump handle broke spilt all down my right leg n foot... water oil chemical boiling hot went to hostpital they wraped it all up... went back on friday rewrapped it. i goto portland today to Emanual Burn Center for aptmt. to find out what and how bad it is my whole right foot is burnt blistered skin sluffing