What do people mean when they say the effects are subtle?

So I started V 30mg around two weeks again (I’m using Elvanse since I’m in Germany but it’s basically the same med). The first few days were amazing. I was totally able to focus, I felt like nothing could bring me down and my anxiety and depression were gone. After a few days I noticed that that „high“ feeling only lasted for 2-3 hours. And now for the first 2–3 hours I feel more calm, my brain fog is less and my mood is a bit better. Also I noticed is that when I actually decide to do something, I’m more likely to do it. But I still get very overwhelmed and can be very impulsive, especially after the 2-3 hours of the calming sensation. My anxiety is also worse, I can barely talk to people without feeling my heart racing and feeling panicky. Sometimes I focus too much on that feeling of overwhelm and I can feel it get even more intense. Idk if I focus too much on my impulsivity and overwhelm or if it actually gets worse on my dosage? I also feel more irritated by noises, lights and people talking too loud or accidentally touching me in the tram.

My doc suggested I take a second pill of 30mg at 2pm, but all it does is give me another 2-3 hours of that calming sensation and better focus. After that everything is the same as above.

Have you experienced something like this?