Hi, sorry to hear you are having troubles with your grades.

You're right, it's really important to get a doctors opinion because there could be something else going on. Sometimes symptoms appear like adhd, but it really is something completely different.

It is very important to talk to your parents about what you think is going on.
I hope you can find nerve to talk to them and that they are supportive. It is no fun at all to be struggling so hard in school and if it is adhd, then the earlier you find out and treat it the better.

Please let us know how it went!