"i was diagnosed with add at the end of grade 6 and started taking concerta in grade 7. i had no idea i had add and just though everyone was like me. i had no enthusiasm anything with school but after i took concerta i was like adhd. so much hyperness and wanting to work. after raising the dose to 36mg i started to get very anxious about my heart feeling like it was beating too fast and was having like a panic attack or something so then i dropped back down to 27mg. the side affects i have is weight loss/loss of appitite, heart palpitations, sleep paraylisis, feelings of excitement. it works for me but i hate the side affects. i also lost 5lbs in one week when i first started and 20lbs in 2 years."