usually when parts share a memory that memory does not fade away.. so Im wondering if maybe some of your meds (if you are on any) may be interfering with your memory process. Sometimes meds can cause memory problems.

here where I live and work inability to feel and express feelings/emotions either present moment or for the past or for memories is called lack of affect. it happens with normal things and can also happen with all mental and physical health problems. some things that can cause this is stress, PTSD, Depression, Anxiety....

my point it its quite common for survivors of traumatic events to have lack of feelings for their self, their memories, their emotions...

suggestions sometimes not working so hard to gain memories will make the memories come forth at a more natural rate, sometimes taking time to do nice things for yourself can make a person relax mentally to the point where the lack of affect barriers give way to being able to feel and express a full range of emotions again and have those memories that seem to have faded away again.