So nice to hear from you again. Not sure I can be of much help as far as the dreams are concerned, but I think this is an interesting subject and hope others will also chime in with their experiences.
My husband passed away a little over 6 years ago and I still have dreams that include him. My experience has been somewhat the opposite of yours.
When awake, although I do believe that he is happy, health and no longer in pain or suffering, sometimes the thoughts of those days & weeks just overwhelm me. In dreams I see him as he once was and living a normal life. The odd thing is that the situations, place and people involved are usually ones that we never experienced when he was alive. Not sure what to make of that.
It does get better with time, but I do think that these things will always affect us in some way or another. We just learn how to better deal with it all. It hasn't been that long since your mom passed away, so what you are going through is probably normal for you in you grieving. I have learned that everyone grieves differently and at a different pace. We just have to go with it.
Sorry I can't be of more help or make it better. Hopefully time will do that.
I'm sure others will be here soon with their experiences and suggestions.
Take care dear Caroline. Keep in touch and let us know how you are doing.
Love & Hugs,