back in October my PHP ptescribed me. Nortryptiline for chest wall pain (costhocondritis) and did not explain what this medicine was, She just mentioned it was form 'chronic pain' when I got home i saw it was AD. Never taken any AD in my life and I know Im not depressive, but I read all the side effects and Im scared to take it, and now my headaches have tremors and chest wall pain has gotten worst. Can anybody tell Me about side effects or if there is any addition related to this medicine? Im scared to take it and really dont know what else to do =\ i have anxiety and this has been happening for almost a yr now since my dad died.