It will take a few cycles for the new dose to make a difference. I hope he comes down gently and makes you feel better!
It would be helpful to keep noting what food he's eating because diet can often be a major factor, for example a sensitivity to a certain type of protein. If you have a log, you can see what presumably he was reacting to.
I hope you have a restful, healing day, and don't have to cope with our big snow!