It sounds like this is too high a dose and/or the wrong medication for you. When you have too much stimulant it increases anxiety, causing the side effects you’re describing.
Here’s just about everything you need to know about ADHD medication:
Talk to your prescribing doctor about what you’re experiencing.
ADDitude Community Moderator, Parenting ADHD Trainer & Author, Mom to teen w/ ADHD, LDs, and autism