What is this called ?

[Boatsetsailrose]

Hi I came back of holiday with a friend and had such a lovely
Time ...
Since being back I've felt
Like a small child - overwhelmed - difficulty coping with day to day - it's a mental thing - my brain is just not operating well --
My life is fine ( I know this as a truth) but I feel like I'm in a major panic and like I'm in a tragedy ...
What is this called
In relation to cptsd ?

[Three Roses]

That sounds like an emotional flashback; this is from"CPTSD: From Surviving To Thriving", page 3 -

"Emotional flashbacks are perhaps the most noticeable and characteristic feature of CPTSD. Survivors of traumatising abandonment are extremely susceptible to painful emotional flashbacks, which unlike PTSD do not typically have a visual component.
   "Emotional flashbacks are sudden and often prolonged regressions to the overwhelming feeling-states of being an abused/abandoned child. These feeling states can include overwhelming fear, shame, alienation, rage, grief and depression. They also include unnecessary triggering of our fight/flight instincts."