I Am Suffering Post Stroke Pain Syndrome On Left Thalamic

I am suffering post stroke pain syndrome on left thalamic lacunar stroke for 3 years. my problem is that the whole body right side feels numbness, stinging pain, tingling and burning sensation. Also feel like a knot tightens around right ribs, chest and shoulder, and feeling like lungs presses on the right ribs when inhale. Strength of right side reduces around 60% and right foot has less grip. Olmesarta Medoxomil Tab 40 mg
1-0-1, Aspirin 150 mg 1-0-0, Amlodipine Besilate 5 mg 1-0-0, Atovastain 10 mg 0-0-1 are regular. Now also taking pregabalin 75 0-0-1 and Renerve Plus Cap 1-0-0. My question whether renerve plus and pregabalin need to be taken for longer period? My post stroke symbtoms are persisting.