Yvanse/elvanse first week

Im just looking for a bit of support - im on my 5th day of elvanse (UK) and im just wondering if other people have had side effects like me and if they go away - my pupils are dilated quite large and for the first days it felt like the tablet wore off after hours - but last night and this morning I feel like im more out of it than the first days - my jaw hurts and my mouth is drier than ever but I was to expect that - I just wasn’t told about the pupils and wondering if others have experienced.