Im someone with diagnosed adhd who has a hard time sleeping at night due to racing thoughts. is there anything i can suggest to my psychiatrist with minimal side effects?

You should put your trust on the doctor who treats you. Our motto is "first, do no harm". Wish you have good sleep with the treatment.

Correct me if I am wrong, but you are asking what shall I take to sleep better because my mind is racing? Why not try changing you routine so as to in clude a diciplined exercise acitivity, like going for a walk after you evening meal and avoid all visual stimulation from the computer for at least an hour before retiring to bed. Don't look to medication.