Hey guys! My doctor recently switched me to Concerta from Vyvanse, and I noticed on both that when I run for an extended period of time and push myself physically, it becomes very hard to breath. My muscles seize up and I can't control my breathing in that it comes in short gasps. I was wondering if this is something I should be concerned about or if it's one of those side effects that lessens as your body adjusts.

Also- Does anyone know if it's safe to drink alcohol on Concerta?

Thanks!