4th day of Concerta 54mg and all of a sudden I have chills and a sudden high fever (102.7) and a huge headache…still in bed miserable with a headache and fever.

I’m going back to 36mg…this was way too scary and 36mg I felt no such side effects at all…this isn’t worth the extra concentration time I would have provided me…I ended up loosing a day because of this.