Could I be immune to ADHD medication?

Can someone be immune to adderall (adderrall) and daytrana? I've tried 15 mg and 30 mg of Adderall (adderrall) and 41.3 mg Daytrana patch. I haven't felt any different in any cases and I don't think I've built up a tolerance since I have only used the medication those 3 times and not close together. I know it's not good to try if it's not prescribed but I wanted to see if it would do anything. I question the possibility that I may have adult ADHD but those symptoms might also be due to depression or bipolar disorder. I know it sounds stupid but I'm hesitant to see a doctor because if it were nothing, I'd feel like I was wasting their time or just trying to find an excuse for my faults.

[Sandman2]

     I believe that body weight does make a significant difference on dosage effects.  
You can google adderall (adderrall) dosage and get a lot of info.  From what I read - if the adderall (adderrall) is not extended release, than you should have felt a difference at 30mg.  Now, if you are really, really big - maybe not?
    Here again (the disclaimer), I am not a doctor.  But if you were a normal adult WITHOUT ADHD, than you should have gotten a rush from the meds.  If you have ADHD, the effect is more subtle.  No rush, but ability to concentrate, etc. improves.  If you have ADD, the effects are even more subtle since you don't have the lack of filters/hyperactivity characteristic of ADHD.   The fact that you didn't feel any difference would indicate the possibility of ADHD/ADD.  You can see if you have any of the symptoms by going here http://www.medhelp.org/medical-information/show/2157/Attention-deficit-hyperactivity-disorder-ADHD?page=1#sec_3761
    Realize that while the above mentioned source is pretty good for ADHD, it really doesn't get into ADD.  Its not unusual for girls to go undiagnosed with ADD because they are not the hyperactive little boys running around getting the attention.  And if the child has enough intelligence that they are able to compensate for the lack of ability to concentrate (ya, you understand it if you are paying attention while it is being explained), but really can't quite study enough - so you get B's instead of A's.  You really don't get noticed by school personal or maybe even parents.  Except YOU know that something isn't right.  
   Finally, GO see a doctor.  Quite messing around.  The fact you felt nothing really is huge.  Buy the book,  "The ADD/ ADHD Answer book," by Susan Ashley, and you will quickly see that something like ADHD/ADD does horrible things to ones psyche.  There may very well be a good logical reason for whatever your "faults" may be.  There is no good reason not to find out.  By the way, this is a life investment.  Pick a good doctor.  A psychologist  or a psychiatrist.  Please post if you have any more questions.
  
    

[kmy221]

The adderall (adderrall) I tried was not extended release and I'm fairly small (5'2, 120 lbs). I didn't feel a rush or any difference in concentration and I took a nap on the adderall (adderrall). I don't remember having trouble concentrating until middle school or high school. I was able to get into a great university but with difficulty and I get mediocre grades. I looked at the link you provided and exhibit most of the inattention symptoms and none of the hyperactive. I will definitely look into the book you suggested and try seeing a doctor this summer. Thanks a lot for your help!

[Sandman2]

Check out this video. It is by a college student - probably about your age describing ADD and how it has affected her.  It is very good and very informative.
   http://www.youtube.com/watch?v=rybVzoKOwWA

  You will also find the book I mentioned pretty helpful.  Best wishes!!

[Anteros1966]

I don't know if you're immune, but its a known fact that not all adhd meds give effect on people. I know several that didn´t get effect from Concerta, but did from ritalin, and vice versa. So yes, you could be. I never got a good effect from concerta, normal ritalin got me more down than life itself, while ritalin SR changed my life to the better......