i was diagnosed with ocd and have been on 200 mg sertraline for almost 3 months now.however it was reduced to 100 mg arond 10 days before due to nausea and vomiting.i usually take it at night.i just don't feel like doing anything.(simply too lazy to do anything except lying down).its not as if i am depressed or anything.i have tried taking my tab at both morning and night with no visible difference as such.should i further reduce it to 50mg?