Hi, I've been on amytriptyline for about 6 months now and I've increased from 25mg to 50mg for over two months. I am finding it hard to concentrate at work and I'm very forgetful which is not like me. I'm finding this is having an effect on my confidence as I feel like a liability. I have tried other antidepressants over the years but they only seem to work for about a year and then I'm struggling again. Does anyone have the same problem?