Although I did not take Nortriptyline specifically, I did take a medication in the same class (tricyclic), successfully, for many many years. At the beginning, however, it makes you REALLY, REALLY sleepy. I mean, I had difficulty staying awake past 6 p.m. at night. You are not saying what dose you are on, but again, not surprising if you are very sleepy. The tricyclics are sedating (in a good way!), in general, but you will find that this ultra-sleepiness will go away as your body gets more used to the medication. There are also other side effects with the tricyclics that seem odd, but that also go away in time. Please feel free to PM me if you have any other questions, and oh yeah, welcome to DF! I really hope my body does get used to it as I hate being this grumpy, as does my family. Currently I am taking 25mgs morning, midday & evening so 75mgs in total. I am seriously thinking I might just do the midday tablet & then take the 2 tablets at night.I also have the very dry mouth (which I can handle) & it seems my tummy is very bloated and weight seems to be just piling on.