Originally Posted by Mark in Idaho

I found this regarding Pristiq,

Call your doctor at once if you have:

seizure (convulsions);

easy bruising or bleeding (nosebleeds, bleeding gums), blood in your urine or stools, coughing up blood;

blurred vision, eye pain or swelling, or seeing halos around lights;

cough, chest tightness, trouble breathing;

high levels of serotonin in the body--agitation, hallucinations, fever, fast heart rate, overactive reflexes, nausea, vomiting, diarrhea, loss of coordination, fainting; or

low levels of sodium in the body--headache, confusion, slurred speech, severe weakness, vomiting, loss of coordination, feeling unsteady.

Sounds like a side effect of the Pristiq.