I want to go to ROTC and eventually reserves after college. What I'm worrying about is that I have recently been tested for ADHD and I don't have the results back yet. If it comes back as a positive for it, would that prevent me from joining or would I need a waiver?

For reference l, I'm prior military that was medically separated for scoliosis, but was told I can join again by my 1st SGT that all I would need is a waiver. I have been diagnosed with anxiety after service as well, but I haven't taken medication for it in a while.