I don't know what to do. All my family and friends say I've had a profound personality shift that I lack emotion and I'm unresponsive during conversation. I've suffered with depression in the past and been diagnosed with ADHD but I'm currently not on any medication for either. I do take nulactil for insomnia and was wondering if that medication could have anything to do with my personality shift. I have an appointment with my Doctor next Monday but I'm not sure what he can do. Any advice most welcome.