You are in the adjustment phase right now, and most likely experiencing the initial start up
side effects. What you report is pretty common as far as
side effects go.
Also, any time you increase your dosage, you can experience a reemergence, or increase in those initial side effects. Adjusting to this med will take some time. Typically, most initial side effects will start to improve about 2 weeks after starting the med (or increasing your dose).