I have been taking zoloft (sertraline) for one monthfor anxiety. i have now got very sore dry lips and i'm licking my lips all the time. could this be a sideffect.?

Probably not: Not a side-effect that has been commonly reported.

Dry lips: About 14% of people in the initial clinical trials said they had dry mouth (compared to 8% on placebo). There have been movement disorders in a small percentage of people -- if your lip-licking could be like a tic. Please discuss your concerns with your physician. If it's simply dry mouth or lips, it may pass; get a high quality lip stick or balm like nivea or labello. Very soothing.