Depends.
Assuming you're previously with a combat unit & remains on
their nominal roll (despite the medical reclassification), they'll
need to redeploy you internally or else you'll likely be lobo
personnel during reservist. In other words, inprocess and stay in
the bunk when the main body moves out. That is, unless you join the
SI cell/BN office people who take turns doing duty COS/clerk, or
something like that.
BTW There'll be no formal vocation conversion for downgradees like
they're possible during active time. But a short, informal
induction course can be done for reservist if you're arrowed to
switch appointments.
Best hope is your CO noting that you're now operationally useless
and post you out/send you back to the Holding List again.
No IPPT anymore, though.