Ok you have been on medication "ABC" for se time now. You know exactly how you are going to feel afterwards.
But then there are times when that same medication has a much different effect.
That could range from no effect to knocking you for a loop
It's happened to me more than once and I am sure others can relate.
Is it what you ate?
Is it your mood?
What else could it be.
Ron DiLauro Spine-Health System Administrator I am not a medical professional. I comment on personal experiences