Same here, I always suspected it, but as I'm 25 and don't want to take medication, I never thought there's much that could be done.
I would love here what y0y did to work with his condition as well.
Don't be afraid of medication. Find a healthcare professional that you trust and will work with you.
There is a book I recommend to everyone who suspects they may have ADHD: Driven to Distraction
It's a very easy read and will give you a lot of insight.
One of the lines I use from that book often with regard to medication and the stigma it has is: would you deny yourself glasses if you couldn't see? The medication helps focus your mind the way glasses help focus your eyes. The medication is the catalyst for other treatment options to be more effective. Cognitive Behavioral Therapy, for example, works far better when you are able to actually concentrate and do the exercises properly without your mind wandering on you.
Most people find that the medication dosage they need of amphetamine is actually quite low. You're not trying to get high and become a speed freak like college kids popping Adderall the night before Finals to cram. Your brain simply lacks dopamine and is forever craving a fix for it - thus always latching on to the most exciting thought and causing impulsive thrill seeking behavior. A small dose of amphetamine feeds the brain this dopamine, rids you of the shortage, and restores the balance you need to be the person you expect yourself to be+.
+Very simplified explanation, obviously. But, it's the best way that I can relate to my brain's behavior - by always thinking of it in terms of a dopamine imbalance. While it's true, other factors are likely involved and ADHD is also often comorbid with anxiety and depression as many of the same chemical pathways are shared.
It's currently being re-evaluated, but it's good enough at the moment.
That being said, as I mention in another comment, there are valid reasons to be cautious with ADHD medication. And as for the stigma, I am very careful about who I talk to about my ADHD in real life. A few of my coworkers know, my boss knows, and a couple of my friends and family members. I discovered very quickly that ADHD itself has a pretty bad stigma, let alone the medication. Everyone thinks you just want to get high. So, I just don't talk about it anymore, even though I so often want to explain to someone that the reason I did something rude (like interrupt them 5 times in 10 minutes) is because I'm ADHD and my medication has worn off, ha.
Long term amphetamine usage has been shown to potentially be toxic to the brain, especially at high doses. It also increases risk for high blood pressure, heart attack, and renal failure for those with pre-existing conditions or who are at-risk for other reasons: genetic conditions, obesity, etc.
Most of us (myself included) will take long breaks from their medication. I don't take it while on vacation, I take most weekends off of it, etc. I take it when I need to be at my best for work and I take it if I am on vacation and feeling like my emotional reactivity is too high, etc.
Ritalin is actually shown to mitigate the effects of amphetamine toxicity, as well, surprisingly, because while it also work on dopamine it uses a different strategy. Instead of causing your brain to produce it (thus potentially frying the cells that do so), it simply prevents the brain from re-absorbing it, much like an SSRI does with serotonin. So, I've heard of some people switching back and forth between amphetamines and Ritalin, though I have not done so myself.
Lastly, there are other drugs such as Cymbalta and other SSRI/SSNRIs that seem do help some people. SSRIs have a whole slew of side effects (especially weight and sexual side effects), and, while SSNRIs tend to have far fewer side effects (Cymbalta seems to have barely any for most people), they are still a fairly new class of drug comparatively so I could understand someone being cautious.
All that being said, the risks are worth it for me. Even if it took 10 years off my life, I'd rather have the remainder of my life be productive, happy, and have healthy relationships than continue to be the shit show I was at times in the past.
May I ask, where this bias against medication comes from?