Had a really bad day yesterday, i have been given Sertaline to to take, started taking them in the morning , but they knocked me out, so started taking them at night along with the Pregablin. Felt dreadful yesterday, was completly out of it and pain was really high. Did not take the Sertaline last night and feel much better this morning ( thank goodness got a funeral to day.) although i was in a lot of pain last night, my legs were just so painful, it was a couple of hrs before that settled down. Should i go back to GP and tell what this tablet is doing to me.?