First, if you're taking any anphetamines or ADD meds, you should smoke freebase DMT only, and not Changa or Enhanced leaf. Refer to the FAQ on this site and search for "MAOI" with your browser on that page for more information.
Here is a link to that page.
DMT didn't make my ADD symptoms worse. What it did do though is make me realize that something was wrong with me, because when I was on an ayahuasca trip one time, it kept telling me "you're sick, you're sick, you're sick, something is wrong, you have to figure this out".
ADD is very tricky. Many people think they have it, get diagnosed with it, get medicated for it, and even see benefit from the meds, but actually aren't truly "ADD". I leave out ADHD indicating hyper-activeness and instead purely refer to ADD, or ADHD-i (inattentive subtype). I was one of those people.
It took me a year of work on myself to figure out that the foods I ate were messing up my brain. Once I finally removed gluten, dairy, corn and legumes from my diet, at the age of 33, my life long inattentive ADD vanished as well as a bunch of other big changes.
* Focus is great now, I can work for an hour on the same task and can also meditate and clear my head of thoughts. The ADD meds gave me focus but it was more crude, like I'm being pushed to do the work, not having my mind gracefully handle what's in front of me as it does now.
* Blood pressure from 180/90 -> 120/65
* General anxiety nearly gone. I used to sit at home worrying about everything and anything. Now my head is clear and I can meditate.
* Social anxiety nearly gone. I couldn't order a pizza on the phone, now I can talk to strangers on the street.
* Unconsciously stopped biting my fingernails after having done so for 28 years, only 4 days off the gluten.
* Visualization abilities gained. I could never picture say, a horse, in my minds eye. Nor could I visualize angles on a pool-table. Now I can do both of those things.
* My vision is nearly 2x as clear in two ways. 1) I can see textures on clothing and surfaces from long distances I couldn't before. 2) I'm consciously aware of more things at the same time and in the case of driving by a tree, so much more information is coming into my brain and overall this makes the world feel more "3d".
* My thoughts are clearer, come faster and can be more complex. I'm a programmer and my abilities in this field have subjectively doubled.
* I can read other peoples emotions, which came with the clear vision. When I see someone else talking now, I'm reading between what they are saying, and getting an idea of who they are, how they see the world, etc. This makes me feel at ease because I feel more comfortable knowing the other persons intentions. I think the social anxiety came from the lack of being able to "read people". It's like I was in the dark before when talking to someone else even though the lights were on.
* I can handle my own emotions much better. I'm not angry all the time and when I get upset, I can calm myself down and then take actions to resolve the underlying problem.
I did DMT both when I had and was diagnosed "ADD" and after I figured out the underlying cause of my problems. My trips before were always very non-visual, and if there were visuals, generally blurry, unable to remember nearly anything other than my feelings. Now my trips are more like what everyone describes. Bright visuals, more colors, I can see more, I am more consciously aware of what's going on, even If I had forgotten I did DMT. It's like I am even more awake in that "realm".
I did mushrooms while on my Vyvanse ADD meds, I don't remember it being better or worse because of it. I read reports on shroomery.org about other people with ADD using meds and taking shroom trips.
Go for it, smoalk the DMT, and go do some research on your food :-) You can PM me if you want some more info.