Hi! Hm I’ve been on concerta for almost 1 year and the rise on the heart rate is something you expect because it’s a stimulant. About peeing, I’ve checked in uptodate and there is no report (yet) of that adverse reaction, so maybe it could be something else. What it is proven is that methylphenidate can make you feel anxious, so maybe that’s why you feel like peeing more than usual.
Remember, you can consult in here, but as a med student (lol) i highly recommend you to write down everything you doubt about your treatment so you can ask your doctor. 🙂
Sorry for the grammar/bad English. I’m not a native English speaker.