the first that i would do is get a second opinion. I recommend Dr. Troy Noonan in Brandon as a good source.
My son has Autism and was originally diagnosed as ADHD when the doctor walked into the room and announced "ADHD" handed me a prescription for Ritalin and walked out. I found out the hard way that David did not have ADHD. Dr. Noonan now treats my son. He is extremely conservative about medication. If your son actually does have ADHD and medications are required, Dr. Noonan will be as conservative as possible about dosing and such as.
I also recommend that you look at the Diagnostic Criteria for ADHD and see if it fits your son. Here is the link: http://www.cdc.gov/ncbddd/adhd/symptom.htm
If this does not sound like your son, I would talk to the teacher and see how he is at school. I would also show it to the doctor you choose for the second opinion.
As for non-medication ways to handle things:
Lavendar and Chamomille Bath Salts are good for calming.
Chamomille tea is good.
Quiet Time (not time out - time to be quiet and regroup.)
Also, see if there is something he can carry for security (my son carries cars - very appropriate for a boy of 9 years old. It doesn't look out of place and he has something to share when he meets someone new. Also easily concealed in his jeans or bookbag at school)
If your son truly does have ADHD, you need to know that you will need an IEP for him that will allow for extra time to complete assignments, extra time on FCAT, frequent breaks for him to get up and move around if needed. Also, consider requesting a wiggle seat (it's a wonderful invention that allows him to wiggle in the seat without the chair actually moving so he does not disrupt the rest of the class).
All of these things are on my son's IEP. I also use the bath and the tea. And for David, I created the wording "Quiet Time" so he understood the difference in punishment and that sometimes, he just needs time away from the group to settle down and regroup before rejoining the class.
I don't know what school system you deal with, but absolutely DO NOT allow the school system to tell you that your son will need special classes. David is fully integrated with regular ed classes. If you walked into the classroom, you could not easily pick my son out.
Also, on the chance that your son actually does have ADHD, I recommend reading and understanding your son's rights under the American's with Disabilities Act and the IDEA Law. These will be your best support with the school system.
If your son has trouble sleeping, there is a natural remedy you can give him. You can buy it at the local health food store. It's called Melatonin. It helps your body slow down and sleep better. I would guess under smaller doses it may help with calming, but the person at the health food store may be able to tell you about natural remedies for calming and focusing.