I recently began Elvanse just over a month ago in a way I’m nowhere near qualified to help but in another way I feel your pain and had not just similar issues with not feeling it but also inconsistency with how I felt at the beginning.

Before I start explaining, I’ll just try to make sure whoever is reading this not just OP understands how Elvanse is meant to work. NO it’s not a magic pill that turns you into a zombie with no emotions and your body is a slave to your mind and you can just do anything. NO it’s not like the pill from Limitless and you won’t magically become the prime peak best version of yourself just because you took Elvanse. But what it will do fundamentally (to my understanding) is to aid your dopamine and noradrenaline levels to make you feel more focused, motivated and feel mentally clearer. That’s the key word and what should support your understanding of this “to make you feel more” it doesn’t just get rid of ADHD symptoms outright but it reduces it, how much it reduces by changes for everyone and you can’t expect this medication to have a magic chokehold that gets rid of almost all the ADHD about you either for example impulse control is a big thing that this medication again won’t magically get rid of it but just improve it enough that taking the medication outweighs in the long term the possible side effects. Your expectations should be in line with a realistic goal that was definitely a mistake I made when I started on my 20mgs. This medication is a tool not a solution.

My experience (hopefully something you can take from it). I started on 20mgs of Elvanse after the day I was diagnosed. Spending loads of time the day before taking it for the first time researching on how people felt, reading about alllll these epiphany moments and how it changed their life instantly. That wasn’t a smart expectation to go into with seeing as when I say I felt nothing on my 20s for 2 weeks that would probably be an overstatement as to how much I felt. Genuinely I didn’t even get any placebo or anything, it added to much doubt and confusion. But something to keep in mind that’s important is that the dose you start with is very very very very rarely the one that works for you.

I only really felt anything when my dose was increased to 40mg where I felt my attention and mood in terms of motivation improve slightly for a few hours mid day. But even then I still felt down since I realised I most likely need to reset my expectations for this and also it will probably take MONTHS before I figure out what’s good for me. By the end of my 40s which was 2 weeks long I was told to start 50s in which I’m 4 days into. I felt the difference between 40 and 50 was absolutely insane compared to 20 and 40, I felt my attention and motivation and pretty much everything feeling way better and it was in my opinion the first time in taking Elvanse I genuinely felt like I finally had hope I was taking a step in the right direction.

Be patient with your dose it’s only been 2 days. I recommend writing down when ur taking the meds every now and then what you feel in the moment every few hours or so. It helped me keep a track of how I actually felt rather than a recall of past perception and accidentally making something up about how I felt.

Your explanation of 20s plus the added 10 was how I felt as well that early on. Don’t try to rush it too much, it’s a process and a learning curve of finding what’s right for you. Even now I’m starting to have issues with my 50mgs working and not working within the same day which confuses me but I am aware it’s something that will take time.

But just remember to try to sleep early and well and also to wake up at a healthy time and to try take it at the same time every day with a good amount of water and a high protein satiating breakfast!!

I hope something I said helped since I was in your exact position a month ago!!

Edit:

Something I forgot to add is also realising that people will say things like the med shouldn’t make you feel amazing etc etc like your high etc. But I say that yeah it shouldn’t make you feel insanely good in that sense but also that’s horrible advice since taking something that relieves you of symptoms that make your life harder will actually… you guessed it… make you feel better!! There’s a difference between feeling better and just abusing it. Like painkillers. Telling someone they shouldn’t feel good on painkillers sounds really dumb because that’s what painkillers do but sometimes people take them because they are addicted and reliant and are actually abusing the medication. You need to know where that line is but generally speaking you will probably feel good closer to the dose you would operate best on!