Hi there I am slightly concerned I have been doing well on Sertraline for 9 months now and feeling OK but the last week I have been feeling really volatile mood swings spending lots of money not sleeping eating lots of sugar I went to GP this am who recommended upping the dose of Sertraline to 200mg taking 1am and 1pm not times he gave me a new script for 100mg tabs. I got home and I've noticed I am taking 100mg of Sertraline and 50mg of Lustral. Could the mix of brands cause a problem, I will now not need the Lustral due to dose change but a bit freaked out about this