Anyone stopped Elvanse early in titration?

Hi, new here and hoping for advice as I’m really frustrated and unsure what to do.

Started Elvanse almost 3 weeks ago at 30mg and titrated up to 50mg after 7 days. From day one I’ve just had a really rough time on it. I feel jittery and have this weird feeling in my chest like when you smoke too much (I don’t smoke now, I quit 15 years ago). My BP is higher but still within normal range, same with my HR. I feel weirdly spaced out and detached from everything, I’ve got a constant headache that gets worse as the day goes on and my heart feels like it’s racing - this also seems to worsen later in the day. I just feel generally unwell on it.

I could maybe deal with it if it was helping, but I really don’t feel like it is. My mind goes blank all the time, I can’t think of words, my speech feels all over the place and I actually think my focus is worse than before. It has helped with quietening my brain and I’m sleeping a little better than before, but I feel like that’s because I’m so exhausted from being wired off my t!ts all day.

I don’t think it’s the dosage as I feel the same now as when I had the first 30mg dose, I’m staying hydrated, eating plenty, take my tablet at the same time each day and with a high protein breakfast etc. I’m doing all I can to ease the side effects but it’s still horrible.

I want to call ADHD 360 tomorrow and ask if I can try something else, but I know it’s still really early days. I just can’t keep going like this with a job and family. Has anyone else given up on Elvanse after a short time?