Of course, I recommend a call to the doctor. From personal experience, the first week or so of certain medications can have not only physical, but emotional side effects too. I remember one medication making me extremely agitated and anxious, my doctor told me to try a few more days, and the symptoms abated. My longest-term medication took about a month to even start working properly - I was extremely anxious during this time but stuck it out once my doctor explained the waiting period and am glad I did!
What's most important is that your prescribing doctor is aware of the issue, and your next course of action is fully informed - should you choose to discontinue the medication, the doctor will be able to help you execute this as safely as possible. Meds are a tricky journey, I was on nearly twenty in about 5 years! Some of them, for only a fortnight due to bad reactions. In the meantime, it might just be a waiting game (with a doctor at your back).
