Concerta Sideeffects - Athletes

Hey there gang,

 I know this a repost but I am looking for fellow athletes like myself who take Concerta. Mine is 18 mg.

1) Excersiing when Im tired I feel a boost at times
2) Noticed the past few days I wake up very thirsty and flushed
3) How much water? food to take? I heard 5 meals a day?

I think the blurriness was due to the fact that I didnt sleep well or not hydrated enough because my metabolism while taking this has gone through the rough.

Anyone else?