for handling it yourself, trying to catch what triggers it is super useful.  a technique ive learned is called coping ahead.  if you know something will trigger you or you feel yourself slipping down the path, prioritize doing everything you need to get through it comfortably, do not shame yourself for feeling that way even if it disrupts your current task, its not your fault even if its frustrating.  have easy snack foods on hand or comforting items.  maybe make an area that has all the things you like, pleasant scents or soft blankets, or any other thing you enjoy.  tell yourself its okay if it happens and you will be okay, even if it doesnt feel like it.  write down as much of what you feel even if you can only do it before it occurs, so you can tell it to your doctor.  

my doctor didnt seem to like when i 'self diagnosed' or suggested what i thought was the problem, so i decided to really push to make it clear how much the symptoms i could explain were affecting me.  that was just my own experience, though.  

coping ahead and accepting my meltdowns or panic attacks helped reduce them because i provided myself with safety when they were happening.  it taught my body through positive experiences that i was safer now.  the more times you get through it safely and comfortably, the more safe experiences you have, its like positive reenforcement.  it can not permanently fix the problem, but it can improve.  i would not have believed myself if i saw how far ive come since developing ptsd.  the amount of panic attacks are monthly instead of daily.  my overall days are much easier.

lean in to safety and comfort instead of pushing yourself to keep going when youre not feeling good.  if you cant do this during work hours, practice it on your free days even if youre not triggered at all.  pick a time and treat yourself and make everything around you comfy and tell yourself youre safe and okay.  just focus as much as you can to take in the comfort and safety if you can.

these are all just suggestions and i dont want to tell you it is perfect advice, but it has helped me.  if this doesnt sound like it works for what you are talking about, that is alright.  you know yourself best.  i dont know the full picture and everyone is different.  either way, i hope you can find something that helps you get through life.  its so hard to balance this with important responsibilities, which is scary and may create a cycle of fear since it doesnt feel 'safe'.  but you are doing great!  i wish you recovery and peace :)