I agree with Annieko. I would ask the pharmacist. They are often more knowledgeable than doctors as to what meds work better. Good luck

Is it possible to ask the pharmacist this same question. He might have some suggestions for side effects I get so ill when I switch medications. Suggestion only. Thinking of you at this time

Yes. I was put on pregabilian first and changed to the gabapentin for that reason

Lyrica is gabapentins big sister.
It's just a stronger form.
I've heard it causes tiredness. Maybe you need to give it a little longer.
If you still feel awful you need to call your doctor. Maybe stay on gabapentin if it's working. I've tried other things n had to stay on gabapentin my self

Sorry I have not been on either medication.