Was on 4 weeks 25mg sertrline then 50mg sertrline 4 weeks now been on a 100mg for 4 feel more anixtiey don't if it's meds or me just thinking about dose increase and want the anxiety to go away thinking the 100mg may be to high if I was gonna have a bad reaction to the 100mg would it start on day 4 of taking it getting more in my system.