No - she is two months into it now and has been fine for awhile - the first month or a little less was the worse. Actually she seems more dedicated now because she says she never wants to go through it again. She is very sensitive to sugar - one night last week she decided to have a small cup of cocoa and it made her crash a little - so now she is eschewing sugar and chocolate completely (no valentine's candy at all - not even one thin mint)