spirits/ghost please help?

Have faith in the Lord and he will help you out with your amazing gift. Write (Pen and paper) each experience down right after it happens even if it is in the middle of the night. Your understanding of these moments will slowly fade with time. This way you can keep a record of them. It will help you link them back to something or someone.

They are called dream visitations your loved ones come to see you. It is easier to connect & communicate during the sleep state. It looks like you are gifted and open to receiving the spirit world. Say hello and see what they have to say.

seek a pastor and pray to jesus.
you're opening yourself up to demonic forces
get help before it's too late

If you never met your "moms ex husband:" or your grandparents, how do you that they are really them and not just figments of your imagination built on what you've heard about them?

Dreams are meaningless and basically are a way of our minds of rearranging our memories and relating concepts. When you remember them (and you forget and/or are not aware of over 90% of the ones that you have), they are just ones that stick out or occurred just prior to waking up.

there are no spirits or ghosts

Seek help. Not from a church but from a therapist or doctor.

Doesn't sound like the Holy Spirit, so it must then
be the Evil Spirits. They will eventually drive you crazy.