Some can argue that one of the "true" ways to know if you are fully shutdown is through blood work.
Ive seen people go through cycles with no PCT and some with proper PCT. The ones with no were fine and the ones with PCT experienced some signs. All depends on each body.
Who knows when it will all catch up. Then indicators up top are good examples. Then how do you know you are fully back? Bloodwork.
"Shutdown" is really a misnomer because it basically deals in terms of black and white while there are shades of gray. Suppression is a better term because when you take androgens, your natural production of testosterone will be suppressed. The degree of suppression will vary based on several factors including dose, duration, how strong of an androgen and conversion to estrogen among other things.
now what are the chances of your test levels being "suppressed" for the rest of your life considering you take a proper PCT?