I have had similar side effects on my medications in regards to urinating more frequently and it is a posted side effect with methylphenidate ER. I have not yet ever read anyone stating the nose irritations like you’re having which is a little alarming to me to be honest. I highly recommend you call your doctors office as well as pharmacist ASAP to make sure that is not a dangerous reaction.
heart racing is normal as long as your blood pressure stays in a reasonable range and should subside fairly quickly as you adjust to the meds but, if your heart starts feeling in anyway uncomfortable on these sort of meds talk with a professional ASAP please!!!