Sir, I used to be on depression medication. Depression like symptoms were caused due to vitamin B12 & D3 deficiency. Even After I recovered from Vitamin deficiency the symptoms of brain fog and stress did not go away. So I consulted a neurologist. He gave me Escitalopram(10mg) and Nortryptyline(25mg) . I take for 2 months then I stopped but brain fog , slow mind problem did not go away. After I stopped taking medication then overhappiness and racing thoughts like symptoms began to appear. What should I do, pleease help me.