I have to agree with your doc -- the therapeutic dose of Lyrica is 450mg / day, and for
gabapentin, 1600mg / day or more. To have
withdrawal symptoms for any medication, you first have to have developed a tolerance to that medication. This takes time. Tolerance is defined as by decline in efficacy, meaning that a dose that was effective for a long time stopped working, and an increase in medication improved the situation. Tolerance takes time.