How do i know if i have adhd because i always think to myself first before saying things?

Delayed answere: You sound like you have a slow speed of mental processing, interfering with your ability to keep up with the rate of class discussion. I suggesting discussing this with your teachers and consider having psychological testing done to see how you can be helped. You may benefit from having extended time to deal with tests, so you do not have to feel pressured to complete the test questions.

Detective Work: Ur behavior could reflect any number of things. I'd be interested in whether this is what u're like in different situations - ones outside of class. I'd also be curious about what u tell urself during group discussions as well as what would happen if you decided 2contribute whatever first comes to ur mind during a discussion. Some detective work & experiments could help narrow the possibilities.