Claudia, sorry to here about your tomatoes. It is one thing to have a problem and know what it is but it's a double whammy when something pops up with no explanation. I live in NE Louisiana, in the middle of farming country, air planes spraying fields for who knows what, something changes in the garden and you don't know if it insect, soil or a drift.
Better luck next time.
Glad you enjoyed the tomatoes that I sent you, pirl