As a noob, I hate when this happens

?

Does bro even play TF2?

I have 12 hours on spy

Yes

You cannot heal people as spy

ik
when you disguise as the enemy medic, and you're near an enemy, the healgun 'triggers' to seem like they're actually healing you

Oh

but your health bar doesnt go up, so you would know

It does?
Oh that's cool