I Was Taking Vyvanse 30 Mg Daily. I Felt It

I was taking Vyvanse 30 mg daily. I felt it was really making a difference in my concentration so my PCP increased it to 40 mg. I get a dull headache in the front of my head between my eyes that last all day. I've been taking it for a week. Will this headache eventually go away? What can I take to stop the headaches because I can't focus and it makes me want to just take a nap..