This sounds familiar.
I think it may have been Ann (Wylie's Mom) that had an issue with Wylie but it straightened out? Not sure. Did you start with a small amount and work your way up or start with the full dose? I just started with the whole thing with no problems.
I'd give it another week or so and if it isn't working, consider switching. If it doesn't get better in a week, you can always pull it for a few days and restart slowly.