u/Additional-Smile-945

So I’ve been on elvanse about 2 years ago but I stopped taking them because I decided to quit school for a year. So now is my exam period to i talked to my doctor about benefits about starting up on the medication again. That is because I have really bad concentration problems and when on elvanse 50mg I can actually focus and work on school compared to no medication. The reason why I am going directly on 50 is because I have my exam in a week and my doctor didn’t think it would do me any good starting lower and then going up. She is also not the one who has prescribed me this, my psychiatrist prescribed me them. Problem is I don’t go there anymore so I don’t have any follow ups abt medication and stuff. But basically I took a pill today pretty early in the morning when getting up for school. I go about my day working on school for so many hours and practice for my exam. The whole day I forgot to eat and don’t have ANY appetite at all. No food sounds good and I don’t wanna eat. I also forget to drink water cause I’m so focused on what I’m doing so my mouth is super dry. At around 6pm I got so tired but decided to stay awake instead of napping because I’ve struggled with sleep my entire life and naps always fucks night sleep for me. So I went back to working on an assignment and finally decided to go sleep at 9:30pm cause I was so exhausted. I put my phone away and layed with my eyes closed for about 1.5h but I just can’t fall asleep. I can feel that the elvanse has worn off but I still can’t fall asleep even if I feel so tired. Please help I have no clue what to do and I have school tomorrow morning.
Edit: its the next day and I took my elvanse with a little food but I ended up not sleeping at all. Now I’m sat in the bathroom at school throwing up. I’ve thrown up 5 times now and I keep on needing to throw up. Does anyone have tips for me because I can’t leave the toilet for more then 5 min.