Okay, so I looked through your diary, and you say then spots only came up within 24hrs? It's just a simple case of fertilizer burn. They look like a burn but they wouldn't come up that fast. Think- have you sprayed or watered the last 48hrs and splashed the leafs? To me it's very burn, just with the fact ur plant has been on that diet awhile and spots that far gone don't happen over 24hrs but very burns will do that. Happy growing..