Because you're apparently still not taking enough and suffering some kind of side effect from not doing so. My guess is you are a heart patient. Getting your Warfarin/Coumadin levels straight can take years. I would think if you are suffering like you say you are your doctor would be adjusting your meds like yesterday and you would be insisting on it.
At least that's what I would do.
Very truly,
Sally Slut Pants (hereinafter referred to as SSP)
You lefty out sassy. So that's SSSP