Depression Side Effect? | ADHD Information

I was just wondering: Has anybody here ever experienced depression in between doses of methylphenidate (Ritalin or generic),  or after coming off the drug (withdrawal)? I know when my kids came off they were very cranky..IMac38947.4989236111I don't know if it is depression or not. but I get very tired for about an hour after meds wear off. After the hour is up, I"m usually ok.