So 64 threw up today, I think she eats to fast...I talked to VET and she says it's nothing to worry about inless it happens a lot. I had been gone all day at work 9 1/2 hours and I came home and put her lysine in her soft cat food as soon as she ate ( fast ) she threw up.....I get so worried, cause she does have herpes ....what do you guys thin ?