Question about Stelazine (Triflouperazine)?

So im now officially scared shitless to take this medication after just seeing a video of Tardive diskinesia, my pharmacist ****** up and gave me 5mg pills instead of 2mg and ive been taking them no problem but after seeing that video im very worried. I didnt think anything of the higher dose because i thought these pills were relativly harmless but now i think way diffrently. Is it only in like super high doses that TD happens or can it happen at any dose. Im an 18 year old male healthy shape if that matters. Gotta love how doctors dont feel the need to share this information with anyone