I started on sertraline 25mg about 12 days ago and have had hideous side effects: nausea, loss of appetite, increased anxiety, random thoughts, shakiness, and weakness. After about 10 days I was slowly getting better but then the doc told me to go up to 50mg which made me worse than before (I've decided to cut back to 25mg). Part of me really wants to give up/stop taking these meds but part of me wants to persist to see if it's going to get better. Can someone please give me some advice?