I m taking Vyvance, I started today, I took a 20 mg, nothing really, so I took a 30 mg 2-3 hours later, basically i m up to 130 mg, and still dont feel much, I m 5 11 and weigh 257 pounds, does that have something to do with the low affects. FYI: I took two 50 mg of Vyvanse about six months ago. I took one at work and felt great, no side effects, the second one I took early in the morning around 9 am, and then at about 1:00 pm I felt like I could fly to the moon, and I felt a little weird, but nothing serious Basically my question is am I going to be alright on 130 mg of Vyvanse, i feel fine, and I don t plan on taking anymore, Today!