Hi, I to was on amitriptyline for very bad neuropathy pains in my feet,especially at night.As you say it did not agree with me(dizziness,blurred vision feeling dopey,nothing new according to my son!).I told the doc and she changed me to Gabapentin. Holy **** that was even worse, seeing flashing lights,dots,etc.Doc then put me on same as you Pregabalin,,up to now after 2 weeks i find them the best,still a bit dopey though in the morning.I,ll tell you something else, the doc said she had tried the other two first under nhs guidlines .Apparently these are the last to be prescribed as they are the most expensive £65 for one months supply(checked it out on,t tinternet!).All that I can advise is take them at night and a strong coffee in the morning.Oh and they have eased my painful feet.