The common side effects of neurontin are blurred vision, dizziness, and muscle ache, swelling of hands, feet, or lower legs, trembling and unusual tiredness. Lyrica
is also known to cause general weakness, lethargy, blurred vision
, ascites, facial edema, generalized edema etc. You must consult your neurologist to change your medications since both of these can cause swelling and you have swelling in both the legs.