Elvanse midday crash

Hi all

I started my Elvanse journey last week, I am on day 8 and have had my first 50g tablet (very quick titration with PUK) I really struggling in the first week with side effects such as feel sick, headaches, feeling like a zombie when it’s worn off around midday. I was hoping when I start 50g the midday crash wouldn’t happen, I am starting to feel a bit disheartened with meds now 😞 has anyone else been through anything similar?