To preface, I love my gf and do cherish her presence in my life, and that I have adhd. 

Lately i've been having issues regarding the idea that there's always another task or thing that I need to do in order for her not to spiral or get upset, sad. I don't intentionally do things wrong, I try to get as invested in her ventures as I can on a daily basis, while spending time with her and pursuing my own interests, but there always seems like im doing something wrong when she gets upset, I didn't do this or that, I forgot x etc. I feel sometimes my capacity to remember all the small things she wants done is at it's limit. To be clear I don't have any intention of breaking up with her, but I wish I could help her understand that I do try to keep her happy, do put in effort, but that what she sometimes expects isn't really possible at the time, that all I can do is the best that I can with the emotional energy/time I have.

Is this a common theme with bpd people or your past partners?